This torus always faces the front, whether observed from the side or from below. The torus that you're looking at facing forward is simultaneously facing forward to another viewer standing elsewhere.

This torus exists as a torus within the viewer's cognitive world. We refer to such artworks that exist in the perceived world as Cognitive Sculpture. When it exists within perception, it is considered to exist.

The artworks Light Vortex, Obverse and Reverse, Light Sculpture - Flow, and Absolute Front Torus, can be seen in the same space.

Light Sculpture - Flow (2016-) series.