I hold a natural world view. I am a part of life. Life is not a part of me. The meaning of my life is to add to the breadth, beauty, and power of life. By doing so, I experience BEING more fully.
I highly recommedn the writings of Gregory Bateson to all fellow atheists. His 'Steps To An Ecology Of Mind' provides an interesting connection of natural sacredness to the human condition. He has also influenced modern society. The line of consciousness lies between the mechanical and the supernatural. A natural world, real, splendid, now.
As for an afterlife, Epicurus was brilliant in his realization that so long as I exist, my death can not exist. If my death exists, I do not. My death exists in my head. I'll live life and die death.