Mahāmāyā is an expansion of yogamāyā, and both these māyās are different expressions of the Lord's internal potencies. As stated in Bhagavad-gītā, the Lord appears through His internal potencies (ātma-māyayā). We should therefore reject the Māyāvāda explanation that the Lord appears in a body given by the external potency, the material energy. The Lord and His incarnation are fully independent and can appear anywhere and everywhere by virtue of the internal potency. Although born out of the so-called dead body of King Vena, King Pṛthu was still an incarnation of the Supreme Personality of Godhead by the Lord's internal potency. The Lord can appear in any family. Sometimes He appears as a fish incarnation (matsya-avatāra) or a boar incarnation (varāha-avatāra). Thus the Lord is completely free and independent to appear anywhere and everywhere by His internal potency.
(Srimad Bhagavatam------4:16:2-------purport).

The Lord is not directly attached to the creation, maintenance and destruction of the material world, for He is eternally busy in the enjoyment of transcendental bliss with paraphernalia composed of His internal potencies. Yet as the initiator of the material energy as well as the marginal potency (the living beings), He expands Himself as the puruṣa-avatāras, who are invested with potencies similar to His. The puruṣa-avatāras are also in the category of bhagavat-tattva because each and every one of them is identical with the original form of the Personality of Godhead.
(Sri Caitanya Caritamrta------1:2:10------purport).

These three energies of the Absolute Truth are also described in the Viṣṇu Purāṇa, where it is said that the living being is equal in quality to the internal potency, whereas the external potency is indirectly controlled by the chief cause of all causes. Māyā, the illusory energy, misleads a living being as fog misleads a pedestrian by blocking off the light of the sun. Although the potency of māyā is inferior in quality to the marginal potency, which consists of the living beings, who are part and parcel of the Lord, it nevertheless has the power to control the living beings, just as fog can block the actions of a certain portion of the sun's rays although it cannot cover the sun. The living beings covered by the illusory energy evolve in different species of life, with bodies ranging from that of an insignificant ant to that of Brahmā, the constructor of the cosmos. The pradhāna, the chief cause of all causes in the impersonal vision, is none other than the Supreme Lord, whom one can see face to face in the internal potency. He takes the material all-pervasive form by His inconceivable power. Although all three potencies—namely internal, external and marginal—are essentially one in the ultimate issue, they are different in action, like electric energy, which can produce both cold and heat under different conditions. The external and marginal potencies are so called under various conditions, but in the original, internal potencies there are no such conditions, nor is it possible for the conditions of the external potency to exist in the marginal, or vice versa. One who is able to understand the intricacies of all these energies of the Supreme Lord can no longer remain an empiric impersonalist under the influence of a poor fund of knowledge.
(Sri Caitanya Caritamrta------1:2:96------purport).

The internal potency of the Lord, which is called cit-śakti or antaraṅga-śakti, exhibits variegatedness in the transcendental Vaikuṇṭha cosmos. Besides ourselves, there are unlimited numbers of liberated living beings who associate with the Personality of Godhead in His innumerable features. The material cosmos displays the external energy, in which the conditioned living beings are provided all liberty to go back to the Personality of Godhead after leaving the material tabernacle.
(Sri Caitanya Caritamrta------1:2:103------purport).

Yogamāyā is the name of the internal potency that makes the Lord forget Himself and become an object of love for His pure devotee in different transcendental mellows. This yogamāyā potency creates a spiritual sentiment in the minds of the damsels of Vraja by which they think of Lord Kṛṣṇa as their paramour. This sentiment is never to be compared to mundane illicit sexual love. It has nothing to do with sexual psychology, although the pure love of such devotees seems to be sexual.
(Sri Caitanya Caritamrta------1:4:29------purport).

In fact, Rādhārāṇī is the internal potency of Śrī Kṛṣṇa, and She eternally intensifies the pleasure of Śrī Kṛṣṇa. Impersonalists cannot understand this without the help of a mahā-bhāgavata devotee. The very name "Rādhā" suggests that Śrīmatī Rādhārāṇī is eternally the topmost mistress of the comforts of Śrī Kṛṣṇa. As such, She is the medium transmitting the living entities' service to Śrī Kṛṣṇa. Devotees in Vṛndāvana therefore seek the mercy of Śrīmatī Rādhārāṇī in order to be recognized as loving servitors of Śrī Kṛṣṇa.
(Sri Caitanya Caritamrta------1:4:56------purport).

Kṛṣṇa is always all-spiritual. Aside from the parents of the Personality of Godhead, all the other paraphernalia of His existence are also essentially a manifestation of sandhinī-śakti, or a transformation of viśuddha-sattva. To make this more clear, it may be said that this sandhinī-śakti of the internal potency maintains and manifests all the variegatedness of the spiritual world. In the kingdom of God, the Lord's servants and maidservants, His consorts, His father and mother and everything else are all transformations of the spiritual existence of sandhinī-śakti. The existential sandhinī-śakti in the external potency similarly expands all the variegatedness of the material cosmos, from which we can have a glimpse of the spiritual field.
(Sri Caitanya Caritamrta------1:4:65------purport).

Śrīmatī Rādhārāṇī is as fully spiritual as Kṛṣṇa. No one should consider Her to be material. She is definitely not like the conditioned souls, who have material bodies, gross and subtle, covered by material senses. She is all-spiritual, and both Her body and Her mind are of the same spiritual embodiment. Because Her body is spiritual, Her senses are also spiritual. Thus Her body, mind and senses fully shine in love of Kṛṣṇa. She is the personified hlādinī-śakti (the pleasure-giving energy of the Lord's internal potency), and therefore She is the only source of enjoyment for Śrī Kṛṣṇa.
(Sri Caitanya Caritamrta------1:4:71------purport).

The goddess Durgā is the superintending deity of this material world, which is made of material elements. The demigods are simply different directors engaged in operating the departments of material activities, and they are under the influence of the same material energy. Kṛṣṇa's internal potencies, however, have nothing to do with the creation of this cosmic material world. The spiritual world and all spiritual activities are under the direction of the internal, spiritual energy, and such activities are performed by Yogamāyā, the spiritual energy.
(Sri Caitanya Caritamrta------2:8:90------purport).

When Śrī Caitanya Mahāprabhu danced, He forgot Himself and was simply absorbed in ecstatic bliss. But His internal potency arranged everything perfectly. This is the difference between the internal and external potency. In the material world, the external potency (material energy) can act only after one endeavors at great length, but when the Supreme Lord desires, everything is performed automatically by the internal potency. By His will, things happen so nicely and perfectly that they appear to be carried out automatically.
(Sri Caitanya Caritamrta------2:13:65------purport).

In the internal potency there are three divisions: saṁvit, hlādinī and sandhinī. The hlādinī potency is the pleasure potency. All living entities have this pleasure-seeking potency, for all beings are trying to have pleasure. This is the very nature of the living entity. At present we are trying to enjoy our pleasure potency by means of the body in this material condition. By bodily contact we are attempting to derive pleasure from material sense objects. We should not think, however, that Kṛṣṇa, who is always spiritual, tries to seek pleasure on this material plane like us.
(Teachings of Lord Caitanya).

When one attains success in chanting gāyatrī mantra, he can enter into the transcendental position of the Lord. First, however, one must acquire the brahminical qualities and become perfectly situated in the mode of goodness in order to chant the gāyatrī mantra successfully. From that point one can begin to transcendentally realize the Lord, His name, His fame, His qualities, etc. Śrīmad-Bhāgavatam is a narration dealing with the svarūpa (form) of the Lord, which is manifested by His internal potency. This potency is distinguished from the external potency, which has manifested the cosmic world within our experience. Śrīla Vyāsadeva makes a clear distinction between the internal and external potencies in the very first verse of the First Chapter of Śrīmad-Bhāgavatam. In that verse he says that the internal potency is factual reality, whereas the external manifested energy in the form of material existence is temporary and illusory, no more real than a mirage in the desert.
(Teachings of Lord Caitanya).

Śrīmad-Bhāgavatam is the narration of the svarūpa of the Lord manifested by His internal potency, and this potency is distinguished from the external potency which has manifested the cosmic world, which is within our experience. Śrīla Vyāsadeva makes a clear distinction between the two in this śloka. Śrī Vyāsadeva says herein that the manifestedinternal potency is real, whereas the external manifested energy in the form of material existence is only temporary and illusory like the mirage in the desert.
(Srimad Bhagavatam------1:1:1-------purport).

But simply by knowing in truth about the Lord's transcendental births and activities, one can get liberation at once. That is the verdict of the Bhagavad-gītā. But those who are in the darkness of ignorance conclude that the Lord's birth and activities in the material world are similar to those of the ordinary living being. Such imperfect conclusions cannot give anyone liberation. His birth, therefore, in the family of King Yadu as the son of King Vasudeva and His transfer into the family of Nanda Mahārāja in the land of Mathurā are all transcendental arrangements made by the internal potency of the Lord.
(Srimad Bhagavatam------1:10:26-------purport).

In the Bhagavad-gītā, it has been proven that the original transcendental and eternal form of the Lord is Śrī Kṛṣṇa, the Absolute Personality of Godhead, but by His inconceivable internal potency, ātma-māyā, He can expand Himself by multifarious forms and incarnations simultaneously, without being diminished in His full potency. He is complete, and although innumerable complete forms emanate from Him, He is still complete, without any loss. That is His spiritual or internal potency.
(Srimad Bhagavatam------2:1:25-------purport).

The Lord's pastimes in the internal potency are displayed in His activities in Vṛndāvana, but His external potential works are directed in His features of Kāraṇārṇavaśāyī Viṣṇu, Garbhodakaśāyī Viṣṇu and Kṣīrodakaśāyī Viṣṇu. Śrīla Viśvanātha Cakravartī offers his good counsel to the interested Vaiṣṇavas when he says that they should not be interested in hearing only about the Lord's activities (like rāsa-līlā), but must be keenly interested in His pastimes in His features of the puruṣāvatāras in connection with sṛṣṭi-tattva, creational functions, following the examples of Mahārāja Parīkṣit, the ideal disciple, and Śukadeva Gosvāmī, the ideal spiritual master.
(Srimad Bhagavatam------2:4:10-------purport).

The living entity who enjoys the interaction of the above gross and subtle ingredients, as set up by eternal time, is an offshoot of internal potency, with freedom to remain either in the material world or in the spiritual world. In the material world the living entity is enticed by deluding nescience, but in the spiritual world he is in the normal condition of spiritual existence without any delusion. The living entity is known as the marginal potency of the Lord. But in all circumstances, neither the material ingredients nor the spiritual parts and parcels are independent of the Personality of Godhead Vāsudeva, for all things, whether products of the external, internal or marginal potencies of the Lord, are simply displays of the same effulgence of the Lord, just as light, heat and smoke are displays of fire.
(Srimad Bhagavatam------2:5:14-------purport).

Whenever the Lord incarnates, He does so in His full internal potency (ātma-māyā), and less intelligent persons mistake Him to be one of the material creations. Śrīla Śrīdhara Svāmī, therefore, rightly commenting on this verse, says that the Brahmaloka mentioned here is Vaikuṇṭha, the kingdom of God, which is sanātana, or eternal, and is therefore not exactly like the material creations described above. The virāṭ universal form of the Lord is an imagination for the material world. It has nothing to do with the spiritual world, or the kingdom of God.
(Srimad Bhagavatam------2:5:39-------purport).

One day Lord Kṛṣṇa as the naughty child disturbed His mother Yaśodā, and she began to tie up the child with ropes just to punish Him. But no matter how much rope she used, she found it always insufficient. Thus she became fatigued, but in the meantime the Lord opened His mouth, and the affectionate mother saw within the mouth of her son all the universes situated together. The mother was astonished, but out of her deep affection for Kṛṣṇa she thought that the Almighty Godhead Nārāyaṇa had kindly looked after her son just to protect Him from all the continuous calamities happening to Him. Because of her deep affection for Kṛṣṇa, she could never think that her very son was Nārāyaṇa, the Personality of Godhead Himself. That is the action of yogamāyā, the internal potency of the Supreme Lord, which acts to perfect all the pastimes of the Lord with His different types of devotees. Who could play such wonders without being God?
(Srimad Bhagavatam------2:7:30-------purport).

Lord Kṛṣṇa is detached from the variegatedness of the inferior nature, but He is in eternal, blissful enjoyment of the spiritual nature, or His internal potency. One who has a poor fund of knowledge cannot understand this distinction between the external and internal potencies. In Bhagavad-gītā, the internal potency is described as the parā prakṛti. In the Viṣṇu Purāṇa also, the internal potency of Viṣṇu is described as parā śakti. The Lord is never detached from the association of parā śakti. This parā śakti and her manifestations are described in the Brahma-saṁhitā (5.37) as ānanda-cinmaya-rasa-pratibhāvitābhiḥ. The Lord is eternally joyful and cognizant in the taste derived from such transcendental bliss. Negation of the variegatedness of the inferior energy does not necessitate negation of the positive transcendental bliss of the spiritual world. Therefore the Lord's gentleness, His smile, His character and everything related to Him are all transcendental. Such manifestations of the internal potency are the reality, of which the material shadow is only a temporary representation from which everyone with proper knowledge must be detached.
(Srimad Bhagavatam------3:3:20-------purport).

The Lord enjoyed in this world with His pure devotees. Although He is the Personality of Godhead and is transcendental to all material attachment, He nevertheless exhibited much attachment for His pure devotees on the earth, as well as for the demigods who engage in His service in the heavenly planets as powerful delegated directors in the management of all material activities. He displayed special attachment for His family members, the Yadus, as well as for His sixteen thousand wives, who had the opportunity to meet Him in the leisure hours of night. All these attachments of the Lord are manifestations of His internal potency, of which the external potency is only a shadow representation. In the Skanda Purāṇa, Prabhāsa-khaṇḍa, in the topics between Lord Śiva and Gaurī, there is confirmation of His internal potential manifestations. There is mention of the Lord's meeting with sixteen thousand cowherd damsels although He is the Haṁsa (transcendental) Supersoul and maintainer of all living entities. The sixteen thousand cowherd damsels are a display of sixteen varieties ofinternal potencies. This will be more elaborately explained in the Tenth Canto. It is said there that Lord Kṛṣṇa is just like the moon and the internal potential damsels are like the stars around the moon.
(Srimad Bhagavatam------3:3:21-------purport).

The Lord remains completely in His internal potency and yet has full knowledge of the external energy as well as the internal energy, just as His devotee remains always in a transcendental position, keeping himself in the service of the Lord without becoming attached to the material body. Śrīla Rūpa Gosvāmī says that the devotee who is always engaged in the devotional service of the Lord is always liberated, regardless of his material situation. If it is possible for a devotee to remain transcendental, it is certainly possible for the Supreme Personality of Godhead to remain in His internal potency without being attached to the external potency.
(Srimad Bhagavatam------4:17:29-------purport).

The Lord is endowed with unlimited potencies (parāsya śaktir vividhaiva śrūyate (Cc. Madhya 13.65, purport)), which are summarized as three, namely external, internal and marginal. The external potency manifests this material world, the internal potency manifests the spiritual world, and the marginal potency manifests the living entities, who are mixtures of internal and external. The living entity, being part and parcel of Parabrahman, is actually internal potency, but because of being in contact with the material energy, he is an emanation of material and spiritual energies. The Supreme Personality of Godhead is above the material energy and is engaged in spiritual pastimes. The material energy is only an external manifestation of His pastimes.
(Srimad Bhagavatam------7:3:34-------purport).