That is to say, you get your sense of who you are from things that ultimately have nothing to do with who you are: your social role, possessions, external appearance, successes and failures, belief systems, and so on. This false, mind-made self, the ego, feels vulnerable, insecure, and is always seeking new things to identify with to give it a feeling that it exists. But nothing is ever enough to give it lasting fulfillment. Its fear remains; its sense of lack and neediness remains.