Curricula of Life

Man changes according to his phases, and change in all forms of nature is an inevitable characteristic of it. In matter in general, it is the transformation of its natural forms from one compound to another. Because its essence interacts according to the various forces of attraction and push within it, and the change of the whole results from the change of its parts, this is the law of God Almighty in nature.
Thus you see the forms of inanimate objects changing according to the change of their parts. The protrusion of mountains, the collapse of valleys, the gathering of seas, fossilization, and other manifestations of inanimate objects are examples of that change according to the actions of natural forces. You see that change most evident in the plant kingdom with the emergence, growth, and offspring of plants after they have fulfilled their lives. And you see it more evident than that in the animal kingdom, especially in human beings, with the generation, growth, and death of animals.