After many years of all realities being one and none being any more or less real than any other, I've finally fought my way through to telling which is which. They are still all equally real (or not real), because there are still the factors of proofs and legitimate realities.
Nonetheless, I fully understand if something is Shadow World, the Nutshell (my internal world), Abi World, or Out Sector (that being what most folk consider the world). I also know if something is Out Sector versus someone else's world. (Abi World being my version of Out Sector).
There are things that seem to hold steady in Out Sector. Gravity, for example. That we have to eat. That we have to have money in this society to get things to eat. Cause and effect, physics, biology...
Opinions create Insert-name-here World. Positives and negatives. Good and bad. Right and wrong. My Abi World is a mishmash of whimsy and logic. Not so much social and emotional constructions.
For all that I can't read a map, I have somehow figured out how to map all the various realities around me and to understand how they interact and to face each one on its own terms. I suppose most people aren't as good at it because they haven't had to fight so hard to tell them apart? More points for Team BatShitNuts!