Shadows on Rainbows

If I time it just right, I can get photos of the rainbows scattered around our living room and dining room, made by early morning sunlight shining through the beveled glass in our front door. This time the colors were very intense, and the one under the dining room table was the best of the lot. So, of course, I had to whip out my camera and play around. Which resulted in this...my hand held between the light and the floor, where the prism effect was the brightest. Looks almost like a hologram, but it's just my hand, interrupting the flow of light.