You cannot see four dimensions. But you can see what a four-dimensional object looks like from inside three-dimensional space.A 4D chess piece passing through your world doesn't appear all at once. You see a cross-section of it — a slice. Depending on where along the fourth axis the slice falls, the same piece can appear small, regular, or large. Move along the fourth dimension and the cross-section changes. The piece shifts. Its apparent form in your space is not its true form. It is a shadow of something