Earlier quoted context omitted.
I'm genuinely curious how you would think of three dimensional objects without ever being able to see them... I guess you would have to describe them. As a suggestion - and not an attack in any way because I'm not sure how I'd do it! - without reference to anything you can see with your eyes, how would you describe space?
As a counterpoint it's routine in topological mathematics to work with 8 or 12 or 11 dimensional objects.
Genuinely curious...