The design is reminiscent of train tracks fading into the distance, i.e. tracks get closer together the farther you look into the distance.

If you look carefully, you can see how the sides of these elements are tapered (thinner on the bottom, wider on the top, and visa versa), so that the front and back planes become twisted slightly. This will produce complex light patterns on the surfaces. Another property of this design is that at a certain point, the negative space between the elements produces the same shape as the element itself.