At first it seems diminutive to say that the imagination and the spirit world are of the same domain.

Yet the physical space you see around you right now is a construct of your imagination.

We are incapable of experiencing outside of our imagination.

But the question becomes, have you explored your imagination? Have you become skilled with your imagination? What are the limits of possibility in your i-magi-nation?

Interesting book someone recommended to me on the topic:
Daimonic Reality: A Field Guide to the Otherworld by Patrick Harpur

Wow a very powerful passage from the above book...