I think what a life in science really teaches you is the vastness of our ignorance.
We don't really understand most of what's happening in the cosmos. Is there any afterlife? Who knows.
I'm using the afterlife as a backdrop against which to explore the joys and complexities of being human - it turns out that it's a great lens with which to understand what matters to us.
It is only through us that God lives. When we abandon him, he dies.