I was just reading a bit about egoic behaviour and the mental complex that we call the ego. After some introspection it seemed to me that what we call the ego is mostly defensive reactions when we feel that some part of what we think are things important to us are threatened. This can be things like our reputation, or our guru, or some other thought of which we have taken ownership.
The whole process of my-making, of extending our sense of self towards other thoughts, feelings, or physical things, is pernicious. It may have served us well when we were monkeys in the forest and our only possession was a knobbly piece of wood which was our club, but these days it is terribly outmoded.