Why don't we want to die?

You suddenly stopped breathing. As if out of nowhere. A sudden swallow or clearing of the throat and everything is silent. You panic and don't know what is happening or what you should do. At the same time, you are glad that there is no last gasp, that it is such a peaceful end. That you have coped so well. You can pretend you are not afraid, but of course you are. You’re scared and why shouldn’t you be? You only have one life.