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Five Yuns and Six QisThrough observation, ancient Chinese learned that every thing in universe including the universe itself could be described by using five elements, which are called Mental, Water, Wood, Fire, and Earth. These five elements constitute the universe and they interact to each other. The relationships between these five elements form the Five Elements Theory. These five elements are also called five Yuns in the Constitution Theory of the Traditional Chinese Medicines (TCM). Yun in Chinese means changing, moving, and continuing.
Land is part of the universe. Besides constitutes by the five Yuns, the land is also influenced by six climates, which are called Tai Yin, Shao Yin, Jue Yin, Yang Ming, Tai Yang, and Shao Yang. These six climates are related to the temperature changes on the land due to the influence of the universe. These six climates are called six Qis in the Constitution Theory.
Since people live on the land, all the influences to the universe and the land are also affected to the people. From the philosophy of Five Yuns and Six Qis, the theory of Heaven Stems and Earth Branches has been developed to describe the health of people and to predict the future of people.
Read complete article at Steve Chang's Yong Kong Blog