The personal form of Kṛṣṇa can be divided into two: svayam-rūpa and svayam-prakāśa. As far as His svayam-rūpa (or pastime form) is concerned, it is in that form that He remains always in Vṛndāvana with the inhabitants of Vṛndāvana. This personal form (svayam-rūpa) can be further divided into the prābhava and vaibhava forms. For instance, Kṛṣṇa expanded Himself in multiple forms during the rāsa dance in order to dance with each and every gopī who took part in forms in order to accommodate His 16,108 wives. There are some instances of great mystics' also expanding their bodily features in different ways, but Kṛṣṇa did not expand Himself by any yoga process. Each expansion of Kṛṣṇa was a separate individual.
Each and every gopi
The Supreme Lord expands His personal forms in two primary categories. The prakāśa forms are manifested by Lord Kṛṣṇa for His pastimes, and their features are exactly like His. When Lord Kṛṣṇa married sixteen thousand queens in Dvārakā, He did so in sixteen thousand prakāśa expansions. Similarly, during the rāsa dance He expanded Himself in identical prakāśa forms to dance beside each and every gopī simultaneously. When the Lord manifests His vilāsa expansions, however, they are all somewhat different in their bodily features. Lord Balarāma is the first vilāsa expansion of Lord Kṛṣṇa, and the four-handed Nārāyaṇa forms in Vaikuṇṭha expand from Balarāma. There is no difference between the bodily forms of Śrī Kṛṣṇa and Balarāma except that Their bodily colors are different. Similarly, Śrī Nārāyaṇa in Vaikuṇṭha has four hands, whereas Kṛṣṇa has only two. The expansions of the Lord who manifest such bodily differences are known as vilāsa-vigrahas.
Other Books by Srila Prabhupada
Teachings of Lord Caitanya
Nectar of Devotion
Any person who can quickly execute a very difficult task is called expert. About the expertise of Kṛṣṇa there is a statement in the Tenth Canto, Fifty-ninth Chapter, verse 17, of Śrīmad-Bhāgavatam, wherein Śukadeva Gosvāmī tells Mahārāja Parīkṣit, "O best of the Kurus, Śrī Kṛṣṇa cut to pieces all the different weapons used by different fighters." Formerly, fighting was done by releasing different kinds of arrows. One party would release a certain arrow, and the other party had to defeat it by counteracting it with another arrow. For example, one party might release an arrow which would cause water to pour from the sky, and to counteract this the opposing party would have to release an arrow which could immediately turn the water into clouds. So from this statement it appears that Kṛṣṇa was very expert in counteracting the enemy's arrows. Similarly, at the rāsa dance, each and every gopī requested that Kṛṣṇa individually become her partner, and Kṛṣṇa immediately expanded Himself into so many Kṛṣṇas in order to be coupled with each and every gopī. The result was that each gopī found Kṛṣṇa by her side.
So Kṛṣṇa has got form, aṅgam, but His aṅga is different. Sac-cid-ānanda-vigraha (Bs. 5.1). His aṅga is sac-cid-ānanda, not like...Ānanda-cinmaya-rasa pratibhāvitābhis tābhir ya eva nija-rūpatayā kalābhiḥ (Bs. 5.37). Kṛṣṇa and His expansion-ananda-cinmāyā. Just like Kṛṣṇa is in the rasa dance. These gopīs are also expansion of His energy. And you will find, therefore, with each and every gopī, Kṛṣṇa is there. That is another expansion. So we should not take Kṛṣṇa's dancing like our ball dance. No, that is mistake. If we understand Kṛṣṇa's dancing, then we become liberated. It is said in the Śrīmad-Bhāgavatam that instead of reading some books of this ball dance, if you read about Kṛṣṇa's dancing, then what will be the result? The result will be hṛd-roga-kāmam apahinoty āśv acireṇa dhīraḥ. Everyone, we have got these lusty desires, but if actually one is advanced and he hears from a realized person what is the meaning of Kṛṣṇa's rasa dance, then the result will be hṛd-roga-kāmam. We have got a heart disease. Heart disease means lusty desire. Hṛd-roga-kāmam apahinoti: "It becomes vanquished."
If one actually hears Kṛṣṇa's rasa-līlā, then no more material lusty desires, this is the result. But unless we are so advanced spiritually, we should not indulge in hearing about rasa-līlā. Then we shall commit offense. We shall think that "Kṛṣṇa is dancing like us." How He, Kṛṣṇa is dancing? Kṛṣṇa is dancing with each and every gopī. Can you do that? Then how you can say that "Kṛṣṇa is dancing like us"? If you see the picture, you will find that each and every... Every gopī is thinking that "Kṛṣṇa is dancing with me." How it is possible? If you dance with imitation... There are many rascals. They imitate that, that "I am Kṛṣṇa, and I can dance also like that." No. It is ānanda-cinmaya-rasa-pratibhāvitābhiḥ (Bs. 5.37). This manifestation, demonstration, is not of this material world. Ananda-cinmaya-rasa. When Kṛṣṇa was dancing, all the gopīs, they left their material body by the side of the husband, but they went to dance. That is spiritual body. That is not material body. So don't indulge in such a way, that "Kṛṣṇa's dancing and our dancing is the same." Then you will be mistaken. That will be offense.