"So what I used to think of as uninteresting diffuse white light turns out to be pretty damned interesting. If you think of every little area in space containing, in the light, all the information for a full-color, completely detailed image of things both nearby and far away, here in this little area of space, and here, and here, then it seems to me that we're walking around all the time in an invisible sea of images.
All you have to do to see one of them is to put your eye right "here" and let in one of those little specks of light. And on top of all that, you see it "out there," projected on the real world. Wow!"