Here’s a little something for you to chew on:
In a single dimension, that is, a line, you could have two entities or groups (with length but not width or breadth, or anything like that) that are identical in every way except for the fact that they are mirror images.
Like so, with these little oxoooo things on their little -------- line.
------------------------oxoooo---------------------------------ooooxo--------------------------------------------
You cannot move these around in their singular dimension (left to right) and get them to overlap. But in two dimensions you can simply move it around and get them to do so, by rotating them. From a one-dimensional perspective, however, you have reflected it.
Same with [‘] and [’] in two dimensions. You can’t move them in two dimensions and get them to overlap, but the three-dimensional you can pretty easily overlap them- by rotating one of them around the “and” between them, so to speak.
What does this look like in three dimensions? Take a pair of gloves- identical, but you can never get them to “overlap”, so to speak, because their handedness is different. But a four-dimensional being would be able to quite simply reflect them via rotating them through the fourth dimension.
This was a nightmare to format in HTML.