Chapter 26 Chapter Seven Yin Yang Five Elements and Calendar

Many very common nouns are related to Qi.For example: solar term, climate, gasification, imposing manner, temperament, luck, etc., which are common to use, but it is not easy to really give a definition to Qi. "Ci Hai" explained: "Usually refers to a very fine substance, which is the origin of everything in the world." This statement is neither sufficient nor comprehensive, and it does not involve the types of Qi and the characteristics of its movement and interaction. If you carefully analyze the concept of Qi in ancient times, you will find that Qi has attributes, and there is no neutral Qi without attributes in the universe.It is composed of yin and yang.Later generations have widely used the word yin and yang as a philosophical concept, but in pursuit of the source, the concept of yin and yang only originated from the changes of the calendar and seasons. The basis of "Book of Changes" is Yin and Yang, using Yang Yao [yao Yao] and Yin Yao to form eight trigrams. "Xi Ci" says: "One yin and one yang are called Dao", and "the righteousness of yin and yang matches the sun and the moon". "Spring and Autumn Fanlu Yin and Yang End and Beginning" said: "The way of heaven, the end and the beginning." The changes of yin and yang mentioned refer to the cycle of seasons. "Guanzi Riding a Horse" says: "Spring, autumn, winter and summer are the transition of yin and yang", which is more clear.

The ancients believed that the change of climate was due to the effect of yin and yang, with yang representing heat and yin representing cold.Yin and Yang interact with each other in the universe, and the alternating changes occur, which are reflected in the changes of the four seasons throughout the year.When summer is hot, it belongs to pure sun.When it is cold in winter, it is pure cloudy.Yang Qi and Yin Qi go up and down each other. In spring, Yang Qi increases and Yin Qi weakens. When Yang Qi reaches its peak, it is the summer solstice, and then it reverses. Yin Qi gradually rises, and Yang Qi decreases. When Yin Qi reaches its peak, it is At the winter solstice, the reversal occurs again at this time, the yang qi rises and the yin qi falls, completing a cycle of alternating changes.