Numinousfeelings are the original god-stuff, from which thetheory-making mind extractsthe individualized godsofthepantheons, the various attributesofthe One.
Jay Bell has drafted a interesting, page-turning book that tours not only the traditional afterlife, but also the afterlives of many different religions as the protagonist, John Grey, works on behalf of Hell to unite all of the varied human pantheons in a war against Heaven to liberate the souls trapped in Purgatory.