Board Thread:The Last Sovereign Discussion/@comment-27713488-20180327004110/@comment-31763506-20180522141630

I'm not sure you can say that the Tower is a metaphysical representation of anything, even assuming the words "metaphysical representation" have a well defined meaning, which I don't think is the case.

The lens I'm viewing extradimensional space through is as a combination of elements from several fantasy worlds. There seem to be elements of the old AD&D "Great Wheel" planar system where there are "Inner Planes" type locations where there are lots of a certain type of matter or form of magic, and "Outer Planes" that are expressions of particular moral philosophies, although we've only seen expressions on an order-chaos spectrum in TLS. There are also distinct echos of Pratchett's Dungeon Dimensions, where hordes of Inchoate beings lurk at the boundaries of reality and seek to swarm into our world if magic is used irresponsibly.