Dimensions are weird things. There are a whole load more of them than the 3 (length, height and depth) most people are used to, such as dimension number 4 (time) and 0 (the dot infinity).

This page shows in an easy manner how we can understand 10 dimensions. It does however end with the contention that there are only 10 dimensions, but Stephen Hawking says there are 11, so we might not be getting the whole story…

If you want another look at how you could understand more dimensional objects through looking at the shadows they cast as they drop through a world, folding hypercubes are a really good way to look at objects. This page has good jpg movies. (BTW it’s also useful to know that flatlanders are people who live in a 2D world)