In Dasein s public way of interpreting, it is said that one dies , because everyone else and oneself can talk himself into saying that in no case is it I myself , for this one is the nobody . Everyone knows that they will die. There is a certainty that belongs to the avoidance of death. We can say everyone dies without facing the possibility of own death. In this case death is just an event that takes place in one s social environment, but its relation to one s own existence is concealed.
Death is just one more fact of experience.
One way in which the existential import of death is not faced, is talk about death as something empirical, as if this were the only meaning of death. This again is to misunderstand the kind of being of Dasein is, whose being must be understood existentially and not categorically, as though it were something present to hand. One can be certain about the empirical fact of death, but this is not at all the same as being certain about one s own death. Again one knows one will die as a fact, but this certainty should not be confused with any kind of existential composure. That it is, Heidegger writes, possible at any moment.