There's an instinct of self-preservation that we all have, otherwise we wouldn't necessarily bother avoiding accidents. But beyond that I have no rational fear of death. Why should I? When I was young I didn't fear death, both because I couldn't personally relate to it and because I believed I was going to heaven which was a better place. Curiously, I have experienced theists to have more of a fear of death than agnostics/atheists. I have had Christians explain this to me as fear of the unknown. I interpret this as a subconscious fear that they may not have enough faith or done enough good works and could end up in hell, after all.

Don't you think we are all afraid to die once we are mature enough to grasp the concept of loss & nothingness? Have you never been afraid of death? If not, how did you get past that fear to the healthy place you're in now? I think one of the appeals of religion is eternal life, or afterlife.