"Perhaps the deepest reason we are afraid of death is that we do not know who we are. We believe in a personal, unique, and separate identity; but if we dare to examine it, we find that this identity depends entirely on an endless collection of things to prop it up: our name, our "biography", our partners, family, home, job, friends, credit card ... It is on their fragile and transient support that we rely for our security. So when they are all taken away, will we have any idea of who we really are?"