"Dualities in a Stereogram I-Ching"
This Stereogram
is quite deep, it blows through the back wall and continues. You can start
on the surface, where two eyes may catch your lizard brain, these are the
dots in the I-Ching, you can then walk the spirals continuously down into
the picture. Incidently, there's writing in all four corners. And the frame
occupies two dimensions, one on the surface, the other on the back wall.