Head in the Clouds
I was sitting in a meeting recently, and I had a direct view of the window. Outside there was one single cloud in the otherwise clear sky. Every couple of minutes I was looking out at the cloud, and I began to realize that every time I looked at it, the cloud had a drastically different shape. I knew clouds changed shape, but this one would almost completely disappear, and then reform itself within a couple of minutes. It was strangely interesting.