Most often, human beings view themselves as consisting of that small conscious part of themselves known as the ego. Yet the ego is only a small part of the entirity of what we are, most of which is unconscious. Often, it's only when the ego is depleted, and at the end of its resources that we begin to get some sense of the capacities and life-giving potential of the greater Self. This awareness is increasingly grounded in the discoveries of neuroscience and evolutionary psychology.