Ego is neither positive nor negative. Those are simply concepts that create more boundaries. Ego is just ego, and the disaster of it all is that you, as a spiritual seeker, have been conditioned to think of the ego as bad, as an enemy, as something to be destroyed. This simply strengthens the ego. In fact, such conclusions arise from the ego itself. Pay no attention to them. Don't go to war with yourself; simply inquire into who you are.