I was chatting on the phone, one day, and I was falling in and out of sleep. Sometimes, or most times, when I get very tired, but am trying to make myself hold on to reality and not pass completely out, I see things. Random images will pop into my head. In this case, a few different patterns, among other things, but this image stayed with me. So, I made it, just to make it. I seem to do that a lot.