First off, let me toss out there that death is a state (being dead) and does not have the usual religious attributes attached to it. You die you are dead. That being said, Feldman's Termination Thesis (2000) is to me, the most logical position to take regarding death. In layman's terms, when we die, everything about us ceases to exist. In effect we are annihilated in the process. Religion of course has spawned the theory that we exist beyond death, as though death is a transitory state, akin to Donne's Death Be Not Proud. Religion takes advantage of a common human flaw, the need to exist beyond our given span in time. Ozymandias comes to mind. We humans mate for the sake of continuing our line, the same thing that other animals do. And for some reason, humans spend thousands of hours worrying about what comes after death, as though there must be something beyond, that there is no logical reason for us to be born, live and then die and then have nothing else.
Death is death. Moths die. Plants die. Solar systems die. Humans die. That is the commonality that brings us all together, that is the universal truth.