I'm not sure why people are so concerned about what happens after they die. Science suggests that our bodies decompose and our existence (life) is over.
What's hard to understand or wrong with that?
Ego, fear of death, and social control appear to be the basis of reincarnation beliefs (despite the fact that there is zero scientific proof of reincarnation).
I accept that this is the only life that I will probably ever know, and I try to make the best of it...
ADG