Falconius:
I think that the guilt things is complicated the way you see it (or maybe I just find it too odd) I see it more like karma, bad deeds generates : problems/demon/monster/negative energy...
Reincarnation: I was more thinking of it as a religious aspect like in Buddhism. It would not have a real impact on the world. It is more a belief than a fact (the way I see it).

Rooster:
That would be a good start for a small continent or part of a larger one
Pangea was just a suggestion someone made a while back. I think if we go with this either if will be a fragmented bunch of close continents or a massive continent that include lots of inland seas or sort of. My best pick would be a mix of big and smaller contient. I prefer more variety.

Ghostman: I like the Order and Chaos idea because it's less related to good vs bad.