Death does not exist, or at least has no meaning other than to which you give it. Nobody has ever perceived death. Much in the way that the fall does not kill you, death does not hurt or harm anything. It does not exist unless you create it. Death has been a way to control life for as long as anything has ever existed. Thanatos is literally nothing, eating away at Eros, the only thing that exists. Nothingness cannot exist without something.