So not eg “[monsters or whatever] represent this symbolic layer/serve this social function in literature” but how do they work, what angle on the world can be derived from the way they appear in folklore and lit, what is the shape of their alienness. (WS does this exceptionally well with their Machen and other episodes.)
Which I mention here because maybe some of you have references that also work on that level and if you do please link them, I am always hungry.