Orbitals

I've let my imagination wander a bit, but still am stuck inside a cube.

First I thought about atomic structure, that is, as we follow it mythologically. 

Then I constrained the idea of electron movement within the cube. What has four electrons? You know what? I flunked Physics, so i don't actually know.

Finally, I developed a band crossing the poles of a diagonally situated elliptical spheroid (diagonal across the cube in four directions), and then made the rest of it transparent.