The first four dimensions are easy, almost all existors in the universe that exist on the Weklian Scale understand them. And the fifth one, many existors can grasp the concept of another level of reality.
The sixth though, that tends to stump existors. Yes, the Level Al-3s might be able to sketch crude approximations, but to truly understand the sixth dimension, they have to accept that all they know and see about their existence is, technically, false.
This, naturally, leads to many of them becoming rather upset.
But it’s the ones who like this idea that are the real issue.