As a writer, I have a few goals when I create worlds. One of those is to have a coherent framework that explains how things work in a logical, understandable way. Another is for a framework to lead to interesting and dramatically juicy outcomes.
Superheroic and comic-book stories are a kitchen sink. Gods, ghosts, and sorcerers work alongside high-tech heroes, mutants, and other people with unique powers. On the supernatural side, this often leads to the All Myths Are True trope. So when I need a framework for how all this works in the long-running Menagerie fiction I’ve worked on, what can I do that doesn’t contradict what’s come before, makes room for new stuff, and still lead to new interesting stories?