It is natural that a philosophical mind wants to know about the origin of the creation. At night he sees the stars in the sky, and he naturally speculates about their inhabitants. Such inquiries are natural for man because man has a developed consciousness which is higher than that of the animals. The author of Śrīmad-Bhāgavatam gives a direct answer to such inquiries. He says that the Lord Śrī Kṛṣṇa is the origin of all creations. He is not only the creator of the universe, but the destroyer as well. The manifested cosmic nature is created at a certain period by the will of the Lord. It is maintained for some time, and then it is annihilated by His will. Therefore, the supreme will is behind all cosmic activities. Of course, there are atheists of various categories who do not believe in a creator, but that is due to a poor fund of knowledge. The modern scientist, for example, has created space satellites, and by some arrangement or other, these satellites are thrown into outer space to fly for some time at the control of the scientist who is far away. Similarly, all the universes with innumerable stars and planets are controlled by the intelligence of the Personality of Godhead.
(Srimad Bagavatam------1:1:1------purport).

The human being and all other living beings are products of His internal energies. Thus the living being is also identical with the Lord. But he is never equal or superior to the Personality of Godhead. The Lord and living beings are all individual persons. With the help of the material energies the living beings are also creating something, but none of their creations are equal or superior to the creations of the Lord. The human being may create a small playful sputnik and may throw it into outer space, but that does not mean that he can create a planet like the earth or moon and float it in the air as the Lord does. Men with a poor fund of knowledge claim to be equal to the Lord. They are never equal to the Lord. This is never to be. The human being, after attaining complete perfection, may achieve a large percentage of the qualities of the Lord (say up to seventy-eight percent), but it is never possible to surpass the Lord or to become equal with Him. In a diseased condition only, the foolish being claims to be one with the Lord and thus becomes misled by the illusory energy. The misguided living beings, therefore, must accept the supremacy of the Lord and agree to render loving service to Him. For this they have been created. Without this, there cannot be any peace or tranquillity in the world. Śrīla Vyāsadeva is advised by Śrīla Nārada to expand this idea in the Bhāgavatam. In the Bhagavad-gītā also the same idea is explained: surrender fully unto the lotus feet of the Lord. That is the only business of the perfect human being.
(Srimad Bagavatam------1:5:20------purport).

Only a rich and great man's name and fame are known all over the world, and the name and fame of Mahārāja Yudhiṣṭhira reached the higher planets because of his good administration, worldly possessions, glorious wife Draupadī, the strength of his brothers Bhīma and Arjuna, and his solid sovereign power over the world, known as Jambūdvīpa. Here the word lokāḥ is significant. There are different lokas or higher planets scattered all over the sky, both material and spiritual. A person can reach them by dint of his work in the present life, as stated in Bhagavad-gītā (9.25). No forceful entrance is allowed there. The tiny material scientists and engineers who have discovered vehicles to travel over a few thousand miles in outer space will not be allowed entrance. That is not the way to reach the better planets. One must qualify himself to enter into such happy planets by sacrifice and service. Those who are sinful in every step of life can expect only to be degraded into animal life to suffer more and more the pangs of material existence, and this is also stated in Bhagavad-gītā (16.19). Mahārāja Yudhiṣṭhira's good sacrifices and qualifications were so lofty and virtuous that even the residents of the higher celestial planets were already prepared to receive him as one of them.
(Srimad Bagavatam------1:12:5------purport).

Śrī Nāradajī is an eternal spaceman, having been endowed with a spiritual body by the grace of the Lord. He can travel in the outer spaces of both the material and spiritual worlds without restriction and can approach any planet in unlimited space within no time. We have already discussed his previous life as the son of a maidservant. Because of his association with pure devotees, he was elevated to the position of an eternal spaceman and thus had freedom of movement. One should therefore try to follow in the footsteps of Nārada Muni and not make a futile effort to reach other planets by mechanical means. Mahārāja Yudhiṣṭhira was a pious king, and therefore he could see Nārada Muni occasionally; anyone who desires to see Nārada Muni must first be pious and follow in the footsteps of Nārada Muni.
(Srimad Bagavatam------1:13:60------purport).

In the upper status of the planetary systems there are facilities thousands and thousands of times greater for material enjoyments than in the lower planetary systems. The topmost planetary systems consist of planets like Brahmaloka and Dhruvaloka (the polestar), and all of them are situated beyond Maharloka. The inhabitants of those planets are empowered with eightfold achievements of mystic perfection. They do not have to learn and practice the mystic processes of yoga perfection and achieve the power of becoming small like a particle (aṇimā-siddhi), or lighter than a soft feather (laghimā-siddhi). They do not have to get anything and everything from anywhere and everywhere (prāpti-siddhi), to become heavier than the heaviest (mahimā-siddhi), to act freely even to create something wonderful or to annihilate anything at will (īśitva-siddhi), to control all material elements (vaśitva-siddhi), to possess such power as will never be frustrated in any desire (prākāmya-siddhi), or to assume any shape or form one may even whimsically desire (kāmāvasāyitā-siddhi). All these expediencies are as common as natural gifts for the inhabitants of those higher planets. They do not require any mechanical help to travel in outer space, and they can move and travel at will from one planet to any other planet within no time. The inhabitants of the earth cannot move even to the nearest planet except by mechanical vehicles like spacecraft, but the highly talented inhabitants of such higher planets can do everything very easily.
(Srimad Bagavatam------2:22:2------purport).

Mahārāja Parīkṣit is a typical devotee of Lord Kṛṣṇa, and as such he is anxious to know the complete significance of the creation of the Lord. He wants to know the inner and outer space of the universal form. It is quite fitting for the real searcher of knowledge to know all about this. Those who are of the opinion that the devotees of the Lord are satisfied with mere sentiments can find in the inquiries of Mahārāja Parīkṣit good lessons as to how inquisitive a pure devotee is to know things in their true perfection. The modern scientist is unable to know about the inner space of the universal horizon, and what to speak of the space which covers the universe.
(Srimad Bagavatam------2:8:16------purport).

The devastating water was so fearful that even Brahmā was perturbed at its appearance and became very anxious about how to situate the different planetary systems in outer space to accommodate the different kinds of living entities, such as the human beings, those lower than the human beings, and the superhuman beings. All the planets in the universe are situated according to the different grades of living entities under the influence of the modes of material nature. There are three modes of material nature, and when they are mixed with one another they become nine. When the nine are mixed they become eighty-one, and the eighty-one also become mixed, and thus we ultimately do not know how the delusion increases and increases. Lord Brahmā had to accommodate different places and situations for the requisite bodies of the conditioned souls. The task was meant only for Brahmā, and no one in the universe can even understand how difficult it was. But by the grace of the Lord, Brahmā was able to execute the tremendous task so perfectly that everyone is amazed to see the workmanship of the vidhātā, or the regulator.
(Srimad Bagavatam------3:9:37-28------purport).

At a certain time, the Personality of Godhead, Kāraṇodakaśāyī Viṣṇu, lies in the Kāraṇa Ocean and produces many thousands of universes from His breathing; then He enters again into each and every universe as Garbhodakaśāyī Viṣṇu and fills up half of each universe with His own perspiration. The other half of the universe remains vacant, and that vacant region is called outer space. Then the lotus flower sprouts from His abdomen and produces the first living creature, Brahmā. Then again, as Kṣīrodakaśāyī Viṣṇu, the Lord enters into the heart of every living entity, including Brahmā. This is confirmed in Bhagavad-gītā, Fifteenth Chapter. The Lord says, "I am seated in everyone's heart, and by Me are remembrance and forgetfulness made possible." As the witness of the activities of the individual entities, the Lord gives each one remembrance and intelligence to act according to his desire at the time he was annihilated in his last birth in the last millennium. This intelligence is invoked according to one's own capacity, or by the law of karma.
(Srimad Bagavatam------3:20:17------purport).

The words haṁsena yānena are very significant here. Haṁsa-yāna, the airplane by which Brahmā travels all over outer space, resembles a swan. Brahmā is also known as Haṁsa because he can grasp the essence of everything. His abode is called tri-dhāma-paramam. There are three divisions of the universe—the upper planetary system, the middle planetary system and the lower planetary system—but his abode is above even Siddhaloka, the upper planetary system. He returned to his own planet with the four Kumāras and Nārada because they were not going to be married. The other ṛṣis who came with him, such as Marīci and Atri, remained there because they were to be married to the daughters of Kardama, but his other sons—Sanat, Sanaka, Sanandana, Sanātana and Nārada—went back with him in his swan-shaped airplane. The four Kumāras and Nārada are naiṣṭhika-brahmacārīs. Naiṣṭhika-brahmacārī refers to one who never wastes his semen at any time. They were not to attend the marriage ceremony of their other brothers, Marīci and the other sages, and therefore they went back with their father, Haṁsa.
(Srimad Bagavatam------3:24:20------purport).

It is understood from this verse that all the planets in outer space are floating, and they all hold living entities. The word śvasatām means "those who breathe," or the living entities. In order to accommodate them, there are innumerable planets. Every planet is a residence for innumerable living entities, and the necessary space is provided in the sky by the supreme order of the Lord. It is also stated here that the total universal body is increasing. It is covered by seven layers, and as there are five elements within the universe, so the total elements, in layers, cover the outside of the universal body. The first layer is of earth, and it is ten times greater in size than the space within the universe; the second layer is water, and that is ten times greater than the earthly layer; the third covering is fire, which is ten times greater than the water covering. In this way each layer is ten times greater than the previous one.
(Srimad Bagavatam------3:29:43------purport).

It appears that the residence of Lord Śiva was not on this planet but somewhere in outer space, otherwise how could Sati have seen the airplanes coming from different directions towards this planet and heard the passengers talking about the great sacrifice being performed by Dakṣa? Satī is described here as Dākṣāyaṇī because she was the daughter of Dakṣa. The mention of upadeva-vara refers to inferior demigods like the Gandharvas, Kinnaras and Uragas, who are not exactly demigods but between the demigods and human beings. They were also coming in planes. The word sva-nilayābhyāśe indicates that they were passing right near her residential quarters. The dresses and bodily features of the wives of the heavenly denizens are very nicely described here. Their eyes moved, their earrings and other ornaments glittered and glared, their dresses were the nicest possible, and all of them had special lockets on their necklaces. Each woman was accompanied by her husband. Thus they looked so beautiful that Satī, Dākṣāyaṇī, was impelled to dress similarly and go to the sacrifice with her husband. That is the natural inclination of a woman.
(Srimad Bagavatam------4:3:5-7------purport).

The Vaikuṇṭha airplane does not move by mechanical arrangement. There are three processes for moving in outer space. One of the processes is known to the modern scientist. It is called ka-pota-vāyu. Ka means "outer space," and pota means "ship." There is a second process also called kapota-vāyu. Kapota means "pigeon." One can train pigeons to carry one into outer space. The third process is very subtle. It is called ākāśa-patana. This ākāśa-patana system is also material. Just as the mind can fly anywhere one likes without mechanical arrangement, so the ākāśa-patana airplane can fly at the speed of mind. Beyond this ākāśa-patana system is the Vaikuṇṭha process, which is completely spiritual. The airplane sent by Lord Viṣṇu to carry Dhruva Mahārāja to Śiśumāra was a completely spiritual, transcendental airplane. Material scientists can neither see such vehicles nor imagine how they fly in the air.
(Srimad Bagavatam------4:12:27------purport).

Beneath the entire planetary system is the garbha water. Lord Viṣṇu lies on this garbha water, and from His abdomen a lotus stem grows, and all the planets within the universe are floating in the air, being supported by this lotus stem. If a planet is destroyed, it must fall into the water of garbha. The earth therefore warned King Pṛthu that he could gain nothing by destroying her. Indeed, how would he protect himself and his citizens from drowning in the garbha water? In other words, outer space may be compared to an ocean of air, and each and every planet is floating on it just as a boat or island floats on the ocean. Sometimes planets are called dvīpa, or islands, and sometimes they are called boats. Thus the cosmic manifestation is partially explained in this reference by the cow-shaped earth.
(Srimad Bagavatam------4:17:21------purport).

The inhabitants of both Siddhaloka and Vidyādhara-loka are naturally endowed with mystic yogic powers by which they not only can fly in outer space without a vehicle but can also fly from one planet to another simply by exerting their will. Just as fish can swim within water, the residents of Vidyādhara-loka can swim in the ocean of air. As far as the inhabitants of Siddhaloka are concerned, they are endowed with all mystic powers. The yogīs in this planet practice the eightfold yogic mysticism—namely yama, niyama, āsana, prāṇāyāma, pratyāhāra, dhāraṇā, dhyāna and samādhi. By regularly practicing the yogic processes one after another, the yogīs attain various perfections; they can become smaller than the smallest, heavier than the heaviest, etc. They can even manufacture a planet, get whatever they like and control whatever man they want. All the residents of Siddhaloka are naturally endowed with these mystic yogic powers. It is certainly a very wonderful thing if we see a person on this planet flying in the sky without a vehicle, but in Vidyādhara-loka such flying is as commonplace as a bird's flying in the sky. Similarly, in Siddhaloka all the inhabitants are great yogīs, perfect in mystic powers.
(Srimad Bagavatam------4:18:19------purport).

The four Kumāras are described herein as siddheśvarān, which means "masters of all mystic power." One who has attained perfection in yoga practice immediately becomes master of the eight mystic perfections—to become smaller than the smallest, to become lighter than the lightest, to become bigger than the biggest, to achieve anything one desires, to control everything, etc. These four Kumāras, as siddheśvaras, had achieved all the yogic perfectional achievements, and as such they could travel in outer space without machines. While they were coming to Mahārāja Pṛthu from other planets, they did not come by airplane, but personally. In other words, these four Kumāras were also spacemen who could travel in space without machines. The residents of the planet known as Siddhaloka can travel in outer space from one planet to another without vehicles. However, the special power of the Kumāras mentioned herewith is that whatever place they went to would immediately become sinless. During the reign of Mahārāja Pṛthu, everything on the surface of this globe was sinless, and therefore the Kumāras decided to see the King. Ordinarily they do not go to any planet which is sinful.
(Srimad Bagavatam------4:22:2------purport).

It is said that the demigods never touch the surface of the earth. They walk and travel in space only. Like the great sage Nārada, the Kumāras do not require any machine to travel in space. There are also residents of Siddhaloka who can travel in space without machines. Since they can go from one planet to another, they are called siddhas; that is to say they have acquired all mystic and yogic powers. Such great saintly persons who have attained complete perfection in mystic yoga are not visible in this age on earth because humanity is not worthy of their presence. The Kumāras, however, praised the characteristics of Mahārāja Pṛthu and his great devotional attitude and humility. The Kumāras were greatly satisfied by King Pṛthu's method of worship. It was by the grace of Mahārāja Pṛthu that the common citizens in his domain could see the Kumāras flying in outer space.
(Srimad Bagavatam------4:22:48------purport).

King Prācīnabarhiṣat left his kingdom before his sons arrived after their execution of penance and austerity. The sons, the Pracetās, were ordered by the Supreme Personality of Godhead to come out of the water and go to the kingdom of their father in order to take care of that kingdom. However, when they came out, they saw that everything had been neglected due to the King's absence. They first observed that food grains were not being produced and that there were no agricultural activities. Indeed, the surface of the world was practically covered by very tall trees. It seemed as though the trees were determined to stop people from going into outer space to reach the heavenly kingdoms. The Pracetās became very angry when they saw the surface of the globe covered in this way. They desired that the land be cleared for crops.
(Srimad Bagavatam------4:30:44------purport).

Sometimes the planets in outer space are called islands. We have experience of various types of islands in the ocean, and similarly the various planets, divided into fourteen lokas, are islands in the ocean of space. As Priyavrata drove his chariot behind the sun, he created seven different types of oceans and planetary systems, which altogether are known as Bhū-maṇḍala, or Bhūloka. In the Gāyatrī mantra, we chant, oṁ bhūr bhuvaḥ svaḥ tat savitur vareṇyam. Above the Bhūloka planetary system is Bhuvarloka, and above that is Svargaloka, the heavenly planetary system. All these planetary systems are controlled by Savitā, the sun-god. By chanting the Gāyatrī mantra just after rising early in the morning, one worships the sun-god.
(Srimad Bagavatam------5:1:31------purport).

Kṛṣṇa is yogeśvara, the possessor of all mystic powers (siddhis), and He is ātmārāma, fully self-satisfied. The yoga-siddhis are described in this verse. One can fly inouter space without the aid of a machine, and he can travel at the speed of mind. This means that as soon as a yogī desires to go somewhere within this universe or even beyond this universe, he can do so immediately. One cannot estimate the speed of mind, for within a second the mind can go many millions of miles. Sometimes yogīs enter into the bodies of other people and act as they desire when their bodies are not working properly. When the body becomes old, a perfect yogī can find a young, able body. Giving up his old body, the yogī can enter into the young body and act as he pleases. Being a plenary expansion of Lord Vāsudeva, Lord Ṛṣabhadeva possessed all these mystic yoga powers, but He was satisfied with His devotional love of Kṛṣṇa, which was evinced by the ecstatic symptoms, such as crying, laughing and shivering.
(Srimad Bagavatam------5:5:35------purport).

Sometimes the sun-god is also called Sūrya Nārāyaṇa. The sun-god has expanded himself in twelve divisions, and thus he controls the six seasonal changes and causes winter, summer, rain and so on. Yogīs and karmīs following the varṇāśrama institution, who practice haṭha or aṣṭāṅga-yoga or who perform agnihotra sacrifices, worship Sūrya Nārāyaṇa for their own benefit. The demigod Sūrya is always in touch with the Supreme Personality of Godhead, Nārāyaṇa. Residing in outer space, which is in the middle of the universe, between Bhūloka and Bhuvarloka, the sun rotates through the time circle of the zodiac, represented by twelve rāśis, or signs, and assumes different names according to the sign he is in. For the moon, every month is divided into two fortnights. Similarly, according to solar calculations, a month is equal to the time the sun spends in one constellation; two months constitute one season, and there are twelve months in a year. The entire area of the sky is divided into two halves, each representing an ayana, the course traversed by the sun within a period of six months. The sun travels sometimes slowly, sometimes swiftly and sometimes at a moderate speed. In this way it travels within the three worlds, consisting of the heavenly planets, the earthly planets and outer space. These orbits are referred to by great learned scholars by the names Saṁvatsara, Parivatsara, Iḍāvatsara, Anuvatsara and Vatsara.
(Srimad Bagavatam------5:22------summary).

One day, Pūtanā arrived from outer space in Gokula, the home of Nanda Mahārāja, and by displaying her mystic power, she assumed the disguise of a very beautiful woman. Taking courage, she immediately entered Kṛṣṇa's bedroom without anyone's permission; by the grace of Kṛṣṇa, no one forbade her to enter the house or the room, because that was Kṛṣṇa's desire. The baby Kṛṣṇa, who resembled a fire covered by ashes, looked upon Pūtanā and thought that He would have to kill this demon, the beautiful woman. Enchanted by the influence of yogamāyā and the Personality of Godhead, Pūtanā took Kṛṣṇa upon her lap, and neither Rohiṇī nor Yaśodā objected. The demon Pūtanā offered her breast for Kṛṣṇa to suck, but her breast was smeared with poison. The child Kṛṣṇa, therefore, squeezed Pūtanā's breast so severely that in unbearable pain she had to assume her original body and fell to the ground. Then Kṛṣṇa began playing on her breast just like a small child. When Kṛṣṇa was playing, the gopīs were pacified and took the child away to their own laps. After this incident, the gopīs took precautions because of the attack of the Rākṣasī. Mother Yaśodā gave the child her breast to suck and then laid Him in bed.
(Srimad Bagavatam------10:6------summary).

To a gross materialist this kingdom of God, Vaikuṇṭha, is certainly a mystery. But to an ignorant man everything is a mystery for want of sufficient knowledge. The kingdom of God is not a myth. Even the material planets, which float over our heads in the millions and billions, are still a mystery to the ignorant. Material scientists are now attempting to penetrate this mystery, and a day may come when the people of this earth will be able to travel in outer space and see the variegatedness of these millions of planets with their own eyes. In every planet there is as much material variegatedness as we find in our own planet.
(Sri Caitanya Caritamrta------1:5:14------purport).

The impersonal glowing effulgence known as impersonal Brahman is the outer space of the Vaikuṇṭha planets in the spiritual sky. Beyond that impersonal Brahman is the great Causal Ocean, which lies between the material and spiritual skies. The material nature is a by-product of this Causal Ocean. Kāraṇodakaśāyī Viṣṇu, who lies on the Causal Ocean, creates the universes merely by glancing upon material nature. Therefore Kṛṣṇa personally has nothing to do with the material creation. The Bhagavad-gītā confirms that the Lord glances over material nature and thus she produces the many material universes. Neither Kṛṣṇa in Goloka nor Nārāyaṇa in Vaikuṇṭha comes directly in contact with the material creation. They are completely aloof from the material energy.
(Sri Caitanya Caritamrta------1:5:51------purport).

The material energy is separated from the spiritual energy of the Supreme Personality of Godhead. Thus although it is originally created by the Supreme Lord, He is not actually present within it. The Lord also confirms in the Bhagavad-gītā (9.4), mat-sthāni sarva-bhūtāni: "Everything is resting on Me." This indicates that everything is resting on His own energy. For example, the planets are resting within outer space, which is the separated energy of Kṛṣṇa. The Lord explains in the Bhagavad-gītā (7.4):
bhūmir āpo ’nalo vāyuḥ khaṁ mano buddhir eva ca
ahaṅkāra itīyaṁ me bhinnā prakṛtir aṣṭadhā
"Earth, water, fire, air, ether, mind, intelligence and false ego—all together these eight constitute My separated material energies." The separated energy acts as if it were independent, but here it is said that although such energies are certainly factual, they are not independent but merely separated.
(Sri Caitanya Caritamrta------1:7:119------purport).

The seven islands (dvīpas) are known as (1) Jambu, (2) Śāka, (3) Śālmalī, (4) Kuśa, (5) Krauñca, (6) Gomeda, or Plakṣa, and (7) Puṣkara. The planets are called dvīpas. Outer space is like an ocean of air. Just as there are islands in the watery ocean, these planets in the ocean of space are called dvīpas, or islands in outer space. There are nine khaṇḍas, known as (1) Bhārata, (2) Kinnara, (3) Hari, (4) Kuru, (5) Hiraṇmaya, (6) Ramyaka, (7) Ilāvṛta, (8) Bhadrāśva and (9) Ketumāla. These are different parts of Jambudvīpa. A valley between two mountains is called a khaṇḍa or varṣa.
(Sri Caitanya Caritamrta------2:20:218------purport).

In this universe even the largest planet lies in one corner of outer space. Although the sun is thousands of times larger than the earth, it still lies in one corner of outer space. Similarly, each of the infinite planets, although unlimited in length and breadth, lies in a corner of the spiritual sky known as the brahmajyoti. In the Brahma-saṁhitā this brahmajyoti is described as niṣkalam anantam aśeṣa-bhūtam, or undivided and unlimited and without a trace of the material modes of nature. All the Vaikuṇṭha planets are like petals of a lotus flower, and the principal part of that lotus, called Kṛṣṇaloka or Goloka Vṛndāvana, is the center of all the Vaikuṇṭhas. Thus the expansions of Kṛṣṇa in various forms, as described herein, as well as His various abodes on the spiritual planets in the spiritual sky, are unlimited. Even demigods like Brahmā and Śiva cannot see or even estimate the extent of the Vaikuṇṭha planets. This is confirmed in Śrīmad-Bhāgavatam (10.14.21): "No one can estimate the length and breadth of all the Vaikuṇṭha planets." It is also stated there that not only demigods like Brahmā and Śiva are unable to make such an estimate, but even Ananta, the very incarnation of the Lord's opulence of strength, cannot ascertain any limit to the Lord's potency or to the area of the different Vaikuṇṭha planets.
(Teachings of Lord Caitanya).

Generally a philosophical mind is inquisitive to learn of the origin of all creations. When one who is philosophical sees the night sky, he naturally raises questions about the stars, how they are situated, who lives there, etc. All these inquiries are quite natural for a human being, for the human being has a greater developed consciousness than the animals. In answer to such an inquiry, the author of Śrīmad-Bhāgavatam says that the Lord is the origin of all creations. He is not only the creator but the maintainer and annihilator as well. The manifested cosmic creation is created at a certain period by the will of the Lord, is maintained for some time and is finally annihilated by His will. Thus He is the supreme will behind all activities.
Of course there are atheists of various categories who do not believe in the creator, but that is due simply to their poor fund of knowledge. The modern scientist creates rockets, and by some arrangement or other they are thrown into outer space to fly for some time under the control of a scientist far away. All the universes and the innumerable planets within them are similar to such rockets, and they are all controlled by the Personality of Godhead.
(Teachings of Lord Caitanya).

The process of entering into the antimaterial worlds differs from materialistic processes. The individual living being can very easily enter the antimaterial world by practicing antimaterial activities while residing in the material world. But those who are truly gross materialists, who depend on the limited strength of experimental thought, mental speculation and materialistic science, find great difficulty in entering the antimaterial worlds. The gross materialist may try to approach the antimaterial worlds by endeavoring with spaceships, satellites, rockets, etc., which he throws into outer space, but by such means he cannot even approach the material planets in the higher regions of the material sky, and what to speak of those planets situated in the antimaterial sky, which is far beyond the material universe. Even the yogīs who have perfectly controlled mystic powers have great difficulty entering into that region. Master yogīs who control the antimaterial particle within the material body by practice of mystic powers can give up their material bodies at will at a certain opportune moment and can thus enter the antimaterial worlds through a specific thoroughfare which connects the material and antimaterial worlds.
(Easy journey to other Planets).

The adaptability of organisms in different varieties of planets is described in the Brahma-saṁhitā as vibhūti-bhinnam, i.e., each and every one of the innumerable planets within the universes is endowed with a particular type of atmosphere, and the living beings there are advanced in science, psychology, etc., according to the superiority or inferiority of the atmosphere. Vibhūti means "specific power," and bhinnam means "variegated." Scientists who are attempting to explore outer space in an attempt to reach other planets by mechanical means must realize that organisms adapted to the atmosphere of the earth cannot exist in the atmospheres of other planets. As such, man's attempts to reach the moon, the sun, or Mars will be completely futile because of the different atmospheres prevailing on those planets. Individually, however, one can attempt to go to any planet he desires, but this is only possible by psychological changes in the mind. Mind is the nucleus of the material body. The gradual evolutionary progress of the material body depends on psychological changes within the mind. The change of the bodily construction of a worm into that of a butterfly and, in modern medical science, the conversion of a man's body into that of a woman (or vice versa) are more or less dependent on psychological changes.
(Easy journey to other Planets).

Man-made satellites and mechanical space vehicles will never be able to carry human beings to the planets of outer space. Men cannot even go on their much-advertised trips to the moon, for, as we have already stated, the atmosphere on such higher planets is different from the atmosphere here on earth. Each and every planet has its particular atmosphere, and if one wants to travel to any particular planet within the material universe, one has to have a material body exactly adapted to the climatic condition of that planet. For instance, if one wants to go from India to Europe, where the climatic condition is different, one has to change his dress accordingly. Similarly, a complete change of body is necessary if one wants to go to the transcendental planets of Vaikuṇṭha.
(Easy journey to other Planets).

When the Supreme Personality of Godhead Kṛṣṇa was so ordered by His mother, He immediately opened His mouth just like an ordinary boy. Then mother Yaśodā saw within that mouth the complete opulence of creation. She saw the entire outer space in all directions, mountains, islands, oceans, seas, planets, air, fire, moon and stars. Along with the moon and the stars she also saw all the elements—water, sky and the extensive ethereal existence, along with the total ego and its products, namely the senses, the controllers of the senses, all the demigods and the objects of the senses like sound and smell. Within His mouth she also saw the three qualities of material nature, all living entities, eternal time, material nature, spiritual nature, activity, consciousness and different forms of the whole creation. Yaśodā could find within the mouth of her child everything necessary for cosmic manifestation. She also saw, within His mouth, herself taking Kṛṣṇa on her lap and having Him suck her breast. Upon seeing all this, she became struck with awe and began to wonder whether she were dreaming or actually seeing something extraordinary.
(Krsna Book).

While Lord Kṛṣṇa was thinking in that way, two beautiful chariots, fully equipped with drivers, weapons, flags and other paraphernalia, arrived for Him from outer space. Kṛṣṇa saw the two chariots present before Him and immediately addressed His elder brother, Balarāma, who is also known as Saṅkarṣaṇa: "My dear elder brother, best among the Āryans, You are the Lord of the universe, and, specifically, You are the protector of the Yadu dynasty. The members of the Yadu dynasty sense great danger before the soldiers of Jarāsandha, and they are very much aggrieved. Just to give them protection, Your chariot is also here, filled with weapons. I request You to sit on Your chariot and kill all these soldiers, the entire military strength of the enemy. The two of Us have descended to this earth just to annihilate such unnecessary bellicose forces and give protection to the pious devotees. So we have the opportunity to fulfill Our mission. Please let Us execute it." Thus Kṛṣṇa and Balarāma, the descendants of Daśārha, decided to annihilate the thirteen military companies of Jarāsandha.
(Krsna Book).

Kṛṣṇa first of all constructed a very strong wall covering ninety-six square miles, and the wall itself was within the sea. It was certainly wonderful and was planned and constructed by Viśvakarmā. No ordinary architect could construct such a fort within the sea, but an architect like Viśvakarmā, who is considered to be the engineer among the demigods, can execute such wonderful craftsmanship anywhere in the universe. If huge planets can float in weightlessness in outer space by the arrangement of the Supreme Personality of Godhead, surely the architectural construction of a fort covering ninety-six square miles within the sea was not very wonderful.
(Krsna Book).

But Śambarāsura knew the art of mystic powers and could raise himself into the sky and fight from outer space. There is a demon of the name Maya, and Śambarāsura had learned many mystic powers from him. He thus raised himself high into the sky and threw various types of nuclear weapons at the body of Pradyumna. To combat the mystic powers of Śambarāsura, Pradyumna invoked another mystic power, known as mahāvidyā, which was different from the black mystic power. The mahāvidyā mystic power is based on the quality of goodness. Śambara, understanding that his enemy was formidable, took assistance from various kinds of demoniac mystic powers belonging to the Guhyakas, the Gandharvas, the Piśācas, the snakes and the Rākṣasas. But although the demon exhibited his mystic powers and took shelter of supernatural strength, Pradyumna was able to counteract his strength and powers by the superior power of mahāvidyā. When Śambarāsura was defeated in every respect, Pradyumna took his sharp sword and immediately cut off the demon's head, which was decorated with a helmet and valuable jewels. When Pradyumna thus killed the demon, all the demigods in the higher planetary systems showered flowers on him.
(Krsna Book).

Pradyumna's wife, Māyāvatī, could travel in outer space, and therefore they directly reached his father's capital, Dvārakā, by the airways. They passed above the palace of Lord Kṛṣṇa and came down as a cloud comes down with lightning. The inner section of a palace is known as the antaḥ-pura (private apartments). Pradyumna and Māyāvatī could see many women there, and they set down among them. When the women saw Pradyumna, dressed in yellowish garments, with very long arms, curling hair, beautiful reddish eyes, a smiling face, jewelry and ornaments, they at first could not recognize him as a personality different from Kṛṣṇa. They all felt very bashful at the sudden presence of Kṛṣṇa and wanted to hide in a different corner of the palace.
(Krsna Book).

The vibration of Lord Kṛṣṇa's conchshell sounded like a thunderbolt at the time of the dissolution of the whole cosmic manifestation. The demon Mura heard the vibration of the conchshell, awakened from his sleep and came out to see what had happened. He had five heads and had long been living within the water. The Mura demon was as brilliant as the sun at the time of the dissolution of the cosmos, and his temper was like blazing fire. The effulgence of his body was so dazzling that he was difficult to see with open eyes. When he came out, he first took out his trident and rushed the Supreme Personality of Godhead. The demon Mura in his onslaught was like a big snake attacking Garuḍa. His angry mood was very severe, and he appeared ready to devour the three worlds. First of all he attacked the carrier of Kṛṣṇa, Garuḍa, by whirling and then throwing his trident, and through his five mouths he vibrated sounds like the roaring of a lion. These roaring vibrations spread all over the atmosphere until they extended all over the world and into outer space, up and down and out to the ten directions, rumbling throughout the entire universe.
(Krsna Book).

Bhaumāsura, who was also known as Narakāsura, happened to be the son of the earth personified. When he saw that all his soldiers, commanders and fighters had been killed on the battlefield by the strokes of the weapons of the Personality of Godhead, he became exceedingly angry at the Lord. He then came out of the city with a great number of elephants who had all been born and brought up on the seashore. All of them were highly intoxicated. When they came out, they saw that Lord Kṛṣṇa and His wife were beautifully situated high in outer space just like a blackish cloud about the sun, glittering with the light of electricity. The demon Bhaumāsura immediately released a weapon called Śataghnī, by which he could kill hundreds of warriors with one stroke, and all his assistants simultaneously threw their respective weapons at the Supreme Personality of Godhead. Lord Kṛṣṇa counteracted all these weapons by releasing His feathered arrows. The result of this fight was that all the soldiers and commanders of Bhaumāsura fell to the ground, their arms, legs and heads separated from their trunks, and all their horses and elephants also fell with them. In this way, all the weapons released by Bhaumāsura were cut to pieces by the Lord's arrows.
(Krsna Book).

Citralekhā was a great mystic yoginī, and as soon as Ūṣā identified the picture, Citralekhā could immediately understand that it was of Aniruddha, a grandson of Kṛṣṇa's, although neither she nor Ūṣā had previously known his name or ever seen him. That very night, she traveled in outer space and within a very short time reached the city of Dvārakā, which was well protected by Lord Kṛṣṇa. She entered the palace and found Aniruddha sleeping in his bedroom on a very opulent bed. Citralekhā, by her mystic power, immediately brought Aniruddha, in that sleeping condition, to the city of Śoṇitapura so that Ūṣā might see her desired husband. Ūṣā immediately bloomed in happiness and began to enjoy the company of Aniruddha with great satisfaction.
(Krsna Book).

When Sudakṣiṇa was encouraged by Lord Śiva in that way, he was sure that he would be able to kill Kṛṣṇa. With a determined vow of austerity, he began to execute the black art of chanting mantras, assisted by the priests. After this, out of the fire came a great demoniac form, whose hair, beard and mustache were exactly the color of hot copper. This form was very big and fierce. As the demon arose from the fire, cinders of fire emanated from the sockets of his eyes. The giant fiery demon appeared still more fierce due to the movements of his eyebrows. He exhibited long, sharp teeth and, sticking out his long tongue, licked his upper and lower lips. He was naked, and he carried a big trident, blazing like fire. After appearing from the fire of sacrifice, he stood wielding the trident in his hand. Instigated by Sudakṣiṇa, the demon proceeded toward the capital city, Dvārakā, with many hundreds of ghostly companions, and it appeared that he was going to burn all outer space to ashes. The surface of the earth trembled because of his striking steps. When he entered the city of Dvārakā, all the residents panicked, just like animals in a forest fire.
(Krsna Book).

Lord Kṛṣṇa, who specifically protects His devotees, saw that the whole population of Dvārakā was most perturbed by the presence of the great fiery demon. He immediately smiled and assured them, “Don’t worry. I shall give you all protection.” The Supreme Personality of Godhead, Kṛṣṇa, is all-pervading. He is within everyone's heart, and He is also without, in the form of the cosmic manifestation. He could understand that the fiery demon was a creation of Lord Śiva, and in order to vanquish the demon He took His Sudarśana cakra and ordered him to take the necessary steps. The Sudarśana cakra appeared with the effulgence of millions of suns, his heat being as powerful as the fire created at the end of the cosmic manifestation. By his effulgence the Sudarśana cakra illuminated the entire universe, on the surface of the earth as well as in outer space. Then the Sudarśana cakra began to freeze the fiery demon created by Lord Śiva. In this way, the fiery demon was checked by the Sudarśana cakra of Lord Kṛṣṇa, and, being defeated in his attempt to devastate the city of Dvārakā, he turned back.
(Krsna Book).

After this horrible incident, all the Siddhas, great sages and saintly persons from the upper planetary system showered flowers on the person of Lord Balarāma and vibrated sounds glorifying His supremacy. All of them chanted, "All glories to Lord Balarāma! Let us offer our respectful obeisances unto Your lotus feet. By killing this great demon, Dvivida, You have initiated an auspicious era for the world." All such jubilant sounds of victory were heard from outer space. After killing the great demon Dvivida and being worshiped by showers of flowers and glorious sounds of victory, Balarāma returned to His capital city, Dvārakā.
(Krsna Book).

Before starting the procession, Lord Kṛṣṇa satisfied the great sage Nārada by offering him different kinds of articles of worship. Nāradajī wanted to fall at the lotus feet of Kṛṣṇa, but because the Lord was playing the part of a human being, he simply offered his respects within his mind, and, fixing the transcendental form of the Lord within his heart, he left the assembly house by the airways. Usually the sage Nārada does not walk on the surface of the globe but travels in outer space. After the departure of Nārada, Lord Kṛṣṇa addressed the messenger who had come from the imprisoned kings and told him that they should not be worried, for He would very soon arrange to kill the King of Magadha, Jarāsandha. Thus He wished good fortune to all the imprisoned kings and the messenger. After receiving this assurance from Lord Kṛṣṇa, the messenger returned to the imprisoned kings and informed them of the happy news of the Lord's forthcoming visit. All the kings were joyful at the news and began to wait very anxiously for the Lord's arrival.
(Krsna Book).

“My dear Lord, although the forces of the senses, the mental power of thinking, willing and feeling, and the strength, movement and growth of the body appear to be performed by different movements of the airs within the body, they are all ultimately manifestations of Your energy. The vast expanse of outer space rests in You. The vibration of the sky (its thunder), the supreme sound (oṁkāra) and the arrangement of different words to distinguish one thing from another are all symbolic representations of You. The senses, the controllers of the senses (the demigods) and the acquisition of knowledge, which is the purpose of the senses, as well as the subject matter of knowledge—all are You. The resolution of intelligence and the sharp memory of the living entity are also You. You are the egoistic principle of ignorance, which is the cause of this material world, the egoistic principle of passion, which is the cause of the senses, and the egoistic principle of goodness, which is the origin of the different controlling deities of this material world. The illusory energy, or māyā, which is the cause of the conditioned soul's perpetual transmigration from one form to another, is You."
(Krsna Book).