... I seem to be unable to come up with something else!
Well, it's not quite as bad as that. I'm okay with writing low fantasy stuff that doesn't touch on fantasy religion at all - dealing with wacky goblins, negotiating with a bored dragon, finding out about that giant boar that terrorizes the village.
But whenever I'm writing something that is supposed to feed into my far too ambitious weird fantasy heartbreaker setting, I come up with some combination of the following elements: Some (usually giant) god creature (floating in space in an ancient cocoon, sleeping at the ocean bottom with its back bristles breaking the surface, living in a giant hive of beetles conditioned to do staggeringly complicated calculations for it), some kind of cult that has access to a valuable ressource (a drug produced by people turned into trees that lets you experience a jumble of their memories, the boiling, poisonous blood of that sea good, impossibly accurate answers to complex mathematical and mathemagical problems), and an event that involves the player characters and that will probably upturn everything.