Legion

Gods are born and powered by belief. And at the core of this power is the belief IN gods. To believe in a single god, one must first believe in the concept of Gods. Legion, the one who is many, is the personification of that idea of Gods. A Primordial being of contradiction and confusion, Legion is the source of all other gods. No mother or father, but the single celled precursor to the Gods that men worship by name. It feeds off the unacknowledged faith in faith, and belief in belief and belief in the idea of Gods. A powerful but insane scavenger and bottom dweller, even the most noble appearing of Gods is descended from this elder monstrosity.

Legion dwells in the Hidden Heart, and psychonauts who manage to find their way to that hidden realm are advised to be wary of this thing of pre-thinking belief.