At a certain time in the Fall, the sun shines through a small window above the shower, through the shower glass and onto the bathroom mirror. Our only grandchild, Ava loves rainbows and was fascinated to see the prism-like spot and how it moves as the sun passes over and gradually disappears. We don’t know it happens other than to explain how a prism works. Ava was sitting on the counter when this was taken just before the spot disappears. My daughter got Ava to sit still long enough to get a portion of the spot on her face to avoid it signing in Ava’s eyes. Used iPhone 6, Portrait mode.