What Happens When We Die?

So where do we go, who do we see, what do we do? Heaven or hell. Do we come back as cats or dogs or even the next president? Or do we lay in the ground forever and just rot? I know that's not the most pleasant thing to think or or say, but it's what I think happens. Or at least I can say, no one knows what happens when we die. If we knew then damn, that would be pretty strange. Our minds shut off after death so no one, nothing can report back to the living what happens. Does it make sense though, does it sound right that we can perhaps live on after we die? Live on how? Are our minds and bodies or spirits combined or separate? Some people say that our spirits live on after or bodies decay. Yes, the spirit lives on with out children, but what is a spirit to begin with? So tell me, what happens?