I don't have a particular problem with the biological inevitability of personal oblivion. Someday, some hour, some moment I will cease to be. An instant of black, and then non-essence. No afterlife with ancestors, and no higher plane of consciousness. I don't believe in those things. I believe in my internal universe just silently blinking out of existence, and me along with it. It's natural, and I think I can accept it - intellectually.