Afterlife is another life, it's simple like that
Nothing really change much, just you move from one dimension to another (spiritual world), according to your level of hearth.
If you was selfish in this world, you will naturally join such people in sp. world.
If you was killer, you will join them and if you was good person on the earth, you will leave with good people over there.
So you believe in a parallel sort of hell/heaven. I like that, but it's too specific.
Killers= ends up into a mass murder.
Lovers= too much spread of love/bisexuality
Those are just examples, and I'm not saying the second one is necessarily a bad thing.
By the way, I believe we reborn in 100 years from here. Each time we have 100 years of time to respawn.