The earliest records in the five elements are wood, fire, earth, gold and water, but water is the first one, which is the first time that human beings understand the essence of everything in the universe in their early years. No matter in the west or the east, it is said that water is the first, and the first philosophical proposition in ancient Greece is that water is the source of all things.
Many people think that wood, fire, earth, gold and water in the five elements seem to be five things, which were probably five basic substances. We know that in ancient India, everything in the universe was composed of four elements, while in China, we think it was composed of five elements. What ancient India said was that everything is empty, that is, water, fire, earth and air. Air can also be called wind, and the universe is made up of these four elements.