"Seeing, contrary to popular wisdom, isn't believing. It's where belief stops, because it isn't needed any more." - Terry Pratchett.
If the game is about souls, then I'd like it to have one or several deities presiding over the afterlife/astral realm, with, for instance, eaters of souls being lawful evils, reapers for chaotic neutrals, a king of souls as the lawful good, etc.