The ego is just a useful fiction. Use it, but don't be deceived by it.
Because it is a fiction, there are moments when you are free of it. Because it is a fiction, it can remain there only if you go on maintaining it. A fiction needs great maintenance.
Truth needs no maintenance, that is the beauty of truth. But a fiction? You have constantly to paint it, to give it a prop here and there, and it is constantly collapsing. By the time you have managed to prop up one side, the other side starts collapsing.