There are many signs of God for men and women of understanding. There is the creation of the heavens and the earth. There is the alternation of night and day. There are the ships sailing the ocean with cargoes that bring pleasure to people. There is the rain that God sends down from the sky; by this means he revives the barren earth, and nourishes the creatures that live in the earth. And there are the changing winds, and the clouds that are driven through the atmosphere between the earth and the sky.