Who is Krishna?

Krishna is the Supreme Reality. Everything that exists is an expansion of His energy. In this regard, our Gaudiya Krishnaite spiritual masters cite a scripture called the Brahma-samhita:  "Krishna, who is known as Govinda is the Supreme Godhead. He has an eternal blissful spiritual body. He is the origin of all. He has no other origin and He is the prime cause of all causes."