The Srimad Bhagavatam has an interesting chapter about the nature of the ego and identity, described in a story about a contest of power between Krishna and the Creator God, Brahma. There is no need to repeat it here, as you've probably read it. It is available online at krsnabook.com a>
Krishna's ability to manifest himself in the forms of the gopas and calves is expressed. But what about the unexpressed part?