I agree, I think.
Our universe has three, or four if you count time, dimensions that we perceive.
There are more we cannot perceive. Number not knowable at this point.
This seems to tie in to some extent with the scriptural idea of the spirit world, coexisting in some way parallel to our own, but one we cannot perceive directly. Or at least not consistently.
It is a matter of resonance connecting dimensions at their variable expressions. Dimension space has length, width, and height, while dimension time has linear, planar, and volume. Time is a volume at Universe level, but is only planar at photon level, for the photon crosses the Universe outside of linear time, always in the present of when it was emitted.