FWIW I think TJ’s walked into one of the tangles of the subject.
It’s entirely possible that there are other layers of existance that we can’t see or feel. Gods, space aliens, fairies, invisible pies, divergent parallel dimensions… But if they’re unknowable, untouchable and ineffable why would I waste my time trying to know, touch or eff them? The rules are such that their existance or nonexistance is unprovable, but also unimportant.
The fact that something is unknowable doesn’t mean you have to give it credence. It makes it sensible to just not worry about it.