Education here is not an overriding factor. The way a congenitally blind person "imagines" abstract representations of shapes is substantially different, primarily because the physical wiring of the visual cortex and indeed a lot of the brain would be very different when compared to a person who could see. The dimensionality of their world, despite being the same as that of the sighted ones, may not involve the same descriptive system - ie maybe "polar" (just an example) coordinates would be more "natural" to them than a Cartesian system.

It's simply a problem of what gets mapped to what in the absence of mapping channels we take for granted.

Education is probably not a significant variable here.