The processing, of course, begins with the eyes. Light enters, hits the back of the retina, and is circulated, most of which is streamed to the very back of the brain, at the primary visual cortex. And primary visual cortex sees just simple geometry, just the simplest of shapes. But it also acts like a kind of relay station that re-radiates and redirects information to many other parts of the brain. As many as 30 other parts that selectively make more sense, create more meaning through the kind of "Ah-ha" experiences. We're only going to talk about three of them.