>>3143885>On an evening, he and his wife and I, the three of us were lying in this big bed, talking, and I had my, that, camera, and I had a flash. I looked up and took the picture. Then we continued talking.-- William Eggleston (~26:46 into the documentary) on the subject of his most famous photograph.
Basically saying, he didn't really put any thought into it. He just looked up at a red ceiling and took a picture of it. A lot of people talk about the genius of having those kama sutra prints right there at the edge to draw the eye, but it could be equally well explained by saying "Oh, yeah, he thought the light bulb looked cool, so he focused on that dead center in the frame. Everything else was pretty much accidental."