Metatron's Cube

Another thing that you notice is the nestedness of the hexagon/cubes. Here we see a tesseract, or the cube within a cube. The cube of four would show three nested cubes like this.

You also see other solid figures inside this image, all of the Platonic Solids as a matter of fact. Metatron's Cube serves as a drawing board for multiple symbolic figures.

The tetrahedron, 4 triangles faces.

The octahedron, eight triangle faces.

The Icosahedron, twenty triangle faces.

And the dodecahedron, twelve pentagonal faces.