By expansion of Kṛṣṇa, that is being described by Lord Caitanya. They are described in different Vedic literatures, and we are getting the information in one place from Lord Caitanya. So that is the advantage, to be in the disciplic succession. To find out different information from different scriptures, it is very difficult, but if we become in the line of disciplic succession, all the experience is at once achieved. If you want to fight in the law court and if you want to find out all the law sections from the law book, it is very difficult for you. Better to go to a lawyer who knows the law section and take help, and it is all right. Similarly, there are different kinds of descriptions of the Supreme Lord. The experienced spiritual master gives us the information in one place.
So about the expansion of Lord Kṛṣṇa, in Brahma-saṁhitā, Īśopaniṣad, there are various Vedic literatures . . . they are all, I mean to say, taken together, calculated and presented by Lord Caitanya. He says:
- svayaṁ-rūpa tad-ekātma-rūpa, āveśa—nāma
- prathamei tina-rūpe rahena bhagavān
- (CC Madhya 20.165)
Svayaṁ-rūpa, the Supreme Personality of Godhead Himself, He is called svayaṁ-rūpa, His personal feature. Then tad-ekātmā. So tad-ekātma-rūpa means not exactly the same person, but almost the same. Tad-ekātma. And āveśa. Āveśa means that empowered.
There is always difference between the individual soul and the Supreme Absolute Soul. When the individual soul is specially empowered by the Supreme Soul, that is called āveśa. He can act almost like God. We accept, according to this āveśa, āveśa-avatāra incarnation, authorized incarnation, we accept, my Guru Mahārāja accepted Lord Jesus Christ and Hazrat Muhammad, this āveśa incarnation, almost the same powerful.