User blog comment:Tommy,Klaus&Kol2012+/what monsters can and cant be resurrected from purgatory?/@comment-3481504-20121015014337/@comment-3045936-20121023185554

If you remember angels don't have souls either as stated by Castiel himself to Crowley. Crowley doesn't have a soul either as stated by Plutus the god of greed. And yet, both Angels and demons are spiritual beings. But this is my theory, beings like Leviathans, Angels, deities (the pagans), Reapers, demons, etc. Are immortal beings that can have corporal and or none corporal forms. I mean demons appear as smoke on Earth, Angels appear as Holy light, deities normally have true forms but can have spiritual and or physical depending on the deity. Atropos can go to a Heaven a spiritual world and the Vanir is spiritual like deity possessing the scarcrow.

Reapers, are similar to Ghosts but another species completely. But, maybe the black-goo for the Leviathans is a semi-corporal form that when killed on Earth is blasted back to Purgatory after Death.

Another theory is that for those kind of supernatural beings. It's the same as the scientific view on Death. As in science when you die that's it, religion is what grants an after-life. So to immortal supernatural beings they don't have an after-life just Death. As for the Leviathans, maybe they are slightly freed from this, but they can eat each other and themselves into nothingness too.

Also, this is another theory. Once God has creation something, I have never heard of him altering it for better or worse. Except with the Creation lore of Eve from Adam's Rib.