If a person raises his head and looks at the sky, he will immediately see clouds. Clouds are perhaps the most wonderful thing that nature has come up with. You can't touch them. But you can watch for an endless time how their image changes, how they merge, spread out and melt. I started observing clouds and found out that clouds vary in shape, color and size. And there are also clouds that are lower and others higher. Their movement varies depending on the wind.