The unknown of death, which is not given straight off as nothingness but is correlative to an experience of the impossi­bility of nothingness, signifies not that death is a region from which no one has returned and consequently remains unknown as a matter of fact; the unknown of death signifies that the very relationship with death cannot take place in the light, that the subject is in relationship with what does not come from itself. We could say it is in relationship with mystery.