The friends of the twice-born families are those who are born in the families of brāhmaṇas, kṣatriyas and vaiśyas, or the spiritually cultured families, but who themselves are not equal to their forefathers. Such descendants are not recognized as such, for want of purificatory achievements. The purificatory activities begin even before the birth of a child, and the seed-giving reformatory process is called Garbhādhāna-saṁskāra. One who has not undergone such Garbhādhāna-saṁskāra, or spiritual family planning, is not accepted as being of an actual twice-born family. The Garbhādhāna-saṁskāra is followed by other purificatory processes, out of which the sacred thread ceremony is one. This is performed at the time of spiritual initiation. After this particular saṁskāra, one is rightly called twice-born. One birth is calculated during the seed-giving saṁskāra, and the second birth is calculated at the time of spiritual initiation. One who has been able to undergo such important saṁskāras can be called a bona fide twice-born.
(Srimad Bhagavatam-----1:4:25-----purport).

The material nature is compared to the mother. Although every living being is seen to come out of the mother's body, it is still a fact that the mother is not the ultimate cause of such a birth. The father is the ultimate cause of birth. Without the father's seed, no mother can give birth to a child. Therefore the living beings in different varieties of forms and positions within the innumerable universes are all born of the seeds of the Almighty Father, the Personality of Godhead, and only to the man with a poor fund of knowledge they appear to be born of the material nature. Being under the material energy of the Supreme Lord, all living entities beginning from Brahmā down to the insignificant ant are manifested in different bodies according to their past deeds.
(Srimad Bhagavatam-----2:10:37-40-----purport).

The material nature is one of the energies of the Lord, and she can work under the direction of the Lord (adhyakṣeṇa). When the Lord throws His transcendental glance over the material nature, then only can the material nature act, as a father contacts the mother, who is then able to conceive a child. Although it appears to the layman that the mother gives birth to the child, the experienced man knows that the father gives birth to the child. The material nature therefore produces the moving and standing manifestations of the material world after being contacted by the supreme father, and not independently. Considering material nature to be the cause of creation, maintenance, etc., is called "the logic of nipples on the neck of a goat." The Caitanya-caritāmṛta by Śrīla Kṛṣṇadāsa Kavirāja Gosvāmī describes this logic of ajā-gala-stana-nyāya as follows (as explained by His Divine Grace Śrī Śrīmad Bhaktisiddhānta Sarasvatī Gosvāmī Mahārāja): "The material nature, as the material cause, is known as pradhāna, and as efficient cause is known as māyā. But since it is inert matter, it is not the remote cause of creation."
(Srimad Bhagavatam-----2:10:45-----purport).

We may sometimes be absorbed in some thought which is sinful, but if we give up the sinful thought, it may be said that we give up the body. Brahmā's mind was not in correct order when he created the demons. It must have been full of passion because the entire creation was passionate; therefore such passionate sons were born. It follows that any father and mother should also be careful while begetting children. The mental condition of a child depends upon the mental status of his parents at the time he is conceived. According to the Vedic system, therefore, the garbhādhāna-saṁskāra, or the ceremony for giving birth to a child, is observed. Before begetting a child, one has to sanctify his perplexed mind. When the parents engage their minds in the lotus feet of the Lord and in such a state the child is born, naturally good devotee children come; when the society is full of such good population, there is no trouble from demoniac mentalities.
(Srimad Bhagavatam-----2:20:28-----purport).

Whatever Viṣṇu desired was his duty, and nothing else. He was not prepared to beget a number of children. He would beget only one child, who would help the mission of Viṣṇu. As stated in Bhagavad-gītā, whenever there is a discrepancy in the discharge of religious principles, the Lord descends on the surface of the earth to protect religious principles and to annihilate the miscreants.
Marrying and begetting a child is considered to liquidate one's debts to the family in which one is born. There are many debts which are imposed upon a child just after his birth. There are debts to the family in which one is born, debts to the demigods, debts to the Pitās, debts to the ṛṣis, etc. But if someone engages only in the service of the Supreme Lord, the Personality of Godhead, who is actually worshipable, then even without trying to liquidate other debts, one becomes free from all obligations. Kardama Muni preferred to devote his life as a servant of the Lord in paramahaṁsa knowledge and to beget a child only for that purpose, not to beget numberless children to fill up the vacancies in the universe.
(Srimad Bhagavatam-----2:22:20-----purport).

The yogī is advised next to meditate upon the navel of the Lord, which is the foundation of all material creation. Just as a child is connected to his mother by the umbilical cord, so the first-born living creature, Brahmā, by the supreme will of the Lord, is connected to the Lord by a lotus stem. In the previous verse it was stated that the goddess of fortune, Lakṣmī, who engages in massaging the legs, ankles and thighs of the Lord, is called the mother of Brahmā, but actually Brahmā is born from the abdomen of the Lord, not from the abdomen of his mother. These are inconceivable conceptions of the Lord, and one should not think materially, "How can the father give birth to a child?"
It is explained in the Brahma-saṁhitā that each limb of the Lord has the potency of every other limb; because everything is spiritual, His parts are not conditioned. The Lord can see with His ears. The material ear can hear but cannot see, but we understand from the Brahma-saṁhitā that the Lord can also see with His ears and hear with His eyes.
(Srimad Bhagavatam-----2:28:25-----purport).

After birth the child may forget about the difficulties of his past lives, but when we are grown-up we can at least understand the grievous tortures undergone at birth and death by reading the authorized scriptures like Śrīmad-Bhāgavatam. If we do not believe in the scriptures, that is a different question, but if we have faith in the authority of such descriptions, then we must prepare for our freedom in the next life; that is possible in this human form of life. One who does not take heed of these indications of suffering in human existence is said to be undoubtedly committing suicide. It is said that this human form of life is the only means for crossing over the nescience of māyā, or material existence. We have a very efficient boat in this human form of body, and there is a very expert captain, the spiritual master; the scriptural injunctions are like favorable winds. If we do not cross over the ocean of the nescience of material existence in spite of all these facilities, then certainly we are all intentionally committing suicide.
(Srimad Bhagavatam-----3:31:9-----purport).

It is advised in the Vedas not to pass through the darkness, but to pass through the sun planet. It is also recommended here that by traversing the illuminated path one can be freed from the contamination of the material modes of nature; by that path one can enter into the kingdom where the completely perfect Personality of Godhead resides. The words puruṣaṁ viśvato-mukham mean the Supreme Personality of Godhead, who is all-perfect. All living entities other than the Supreme Personality of Godhead are very small, although they may be big by our calculation. Everyone is infinitesimal, and therefore in the Vedas the Supreme Lord is called the supreme eternal amongst all eternals. He is the proprietor of the material and spiritual worlds and the supreme cause of manifestation. Material nature is only the ingredient because actually the manifestation is caused by His energy. The material energy is also His energy; just as the combination of father and mother is the cause of childbirth, so the combination of the material energy and the glance of the Supreme Personality of Godhead is the cause of the manifestation of the material world. The efficient cause, therefore, is not matter, but the Lord Himself.
(Srimad Bhagavatam-----3:32:7-----purport).

The nature of the Lord's gigantic body is also explained in this verse. That body is transcendental, untouched by matter. Since the material manifestation has come from His body, His body therefore existed before the material creation. The conclusion is that the transcendental body of Viṣṇu is not made of material elements. The body of Viṣṇu is the source of all other living entities, as well as the material nature, which is also supposed to be the energy of that Supreme Personality of Godhead. Devahūti said, "You are the background of the material manifestation and all created energy; therefore Your delivering me from the clutches of māyā by explaining the system of Sāṅkhya philosophy is not so astonishing. But Your being born from my abdomen is certainly wonderful because although You are the source of all creation, You have so kindly taken birth as my child. That is most wonderful. Your body is the source of all the universe, and still You put Your body within the abdomen of a common woman like me. To me, that is most astonishing."
(Srimad Bhagavatam-----3:33:2-----purport).

Vatsara's wife is mentioned here as iṣṭā, which means "worshipable." In other words, it appears that Vatsara's wife had all good qualities; for example, she was always very faithful and obedient and affectionate to her husband. She had all good qualities for managing household affairs. If both the husband and wife are endowed with good qualities and live peacefully, then nice children take birth, and thus the whole family is happy and prosperous.
(Srimad Bhagavatam----4:13:12-----purport).

If a king or head of the government is able to induce the citizens to become Kṛṣṇa conscious, then he is worthy to rule over the mass of people; otherwise, he has no right to levy taxes. If the king looks after the spiritual interests of the citizens, he can levy taxes without difficulties. In this way both the subjects and the king will be happy during this life, and in the next life the king will be able to share one sixth of the pious activities of the citizens. Otherwise, by levying taxes on the sinful citizens, he will have to share the reactions of their sinful activities.
This same principle can be applied to parents and spiritual masters as well. If parents simply give birth to children like cats and dogs but cannot save their children from imminent death, they become responsible for the activities of their animalistic children. Lately, such children are turning into hippies. Similarly, if a spiritual master cannot direct his disciples to become free of sinful activities, he becomes responsible for their sinful acts. These subtle laws of nature are unknown to the present leaders of society. Since the leaders of society have a poor fund of knowledge and the citizens in general are rogues and thieves, there cannot be an auspicious situation for human society.
(Srimad Bhagavatam----4:20:14-----purport).

Queen Arci also entered Patiloka, but this planet is not in the material universe, for she actually entered the planet which her husband attained. In the material world also, when a woman dies with her husband, she again unites with him in the next birth. Similarly, Mahārāja Pṛthu and Queen Arci united in the Vaikuṇṭha planets. In the Vaikuṇṭha planets there are husbands and wives, but there is no question of their giving birth to children or having sex life. In the Vaikuṇṭha planets both husbands and wives are extraordinarily beautiful, and they are attracted to one another, but they do not enjoy sex life. Indeed, they consider sex not to be very relishable because both husband and wife are always absorbed in Kṛṣṇa consciousness and in glorifying and chanting the glories of the Lord.
(Srimad Bhagavatam----4:23:29-----purport).