Chapter 21 Chapter 6 Astronomy and Astrology

In the eyes of the ancients, the sky is personified, and the interaction between the sky and humans will occur.The world is so big, east, west, north, south, and there are many states and counties, so the so-called good and bad cannot be generalized.The appearance of a certain abnormal celestial phenomenon does not necessarily correspond to the whole world, but can only correspond to a certain country, state or county.There is a corresponding relationship between where this good and bad luck happens. This kind of law that corresponds to the sky area and the region is the field division theory.

The concept of dividing fields originated very early. "Zhou Li Chun Guan Zong Bo" has a record of "identifying the land of Kyushu with stars and soil" and observing "the auspiciousness of demons in the world".That is to say, it has begun to match the different stars in the sky with the different states and countries on the earth.The divisions in the sky are roughly divided into twelve constellations with twenty-eight mansions, and countries or regions on the ground.Now compare it with the "Hanshu·Geography" as the basis: "Huainanzi Tianwen Xun" is similar to this.The correspondence between heaven and earth is divided into 13 groups above, but comparing with other field data, we can know that the grouping of the correspondence between heaven and earth does not have a fixed pattern. "Historical Records·Tianguan Shu" has the following star divisions:

The frontier of Qin is also waiting in Taibai, which occupies Langhu; the frontier of Wu and Chu is waiting in Yinghuo, which is occupied by Niaoheng; the frontier of Yanqi is waiting in Chenxing, which is occupied in Xuwei; Occupy the heart of the house; the frontier of Jin is also waiting in Chenxing, occupying the gate. This division only lists eight countries. In addition to the correspondence between regions and stars, it also records the correspondence between five stars and countries. The idea of ​​dividing fields probably originated in the Spring and Autumn Period and the Warring States Period, so the area is sometimes called Jin, sometimes Zhao Wei, but only in the Central Plains.However, after the unification of the Qin and Han Dynasties, the idea of ​​division continued to develop. At this time, the geographical division was no longer a country, but 12 states.From 13 countries through 8 countries to 12 states, it may reflect the evolution process of dividing ideas. The twenty-eight mansions in the sky correspond to the 12 states on the earth, which correspond to the 12 months in the four seasons of the year. It seems that dividing ideas can be seen more mature.

After the corresponding relationship between heaven and earth is established, astrology has a basis.In this way, when there is an abnormal celestial phenomenon in a certain area or star in the sky, the fire, flood, military disaster, plague, etc. reflected by it will have a corresponding area that can be predicted.For example, "Continued Han Shu Astronomical Records" records the appearance and fulfillment of a comet in the first lunar month in the ninth year of Emperor Yongping of Han Ming Dynasty (AD 66). The star, reaching the southern part of Jisu, Xinsu and Fangsu, disappeared after more than 50 days.Afterwards, two rebellions happened between King Jing and Shen Liang of Guangling, Wangying of Chu and Yan Zhong. After the incident was revealed, they all ended up committing suicide.Why is the appearance of the comet considered to be fulfilled by these two kings?This is because the division of Niuniu is in Wu and Yue, the division of Fang and Xin is in Song Dynasty, Guangling belongs to Wu, and Pengcheng belongs to Song, so these two things are fulfilled.

For another example, "Three Kingdoms" records that during the time of Emperor Huan of the Eastern Han Dynasty, a yellow star appeared in the place where the Song and Chu divided. will be irresistible.And 50 years later, there will be a major event of Cao Cao breaking Yuan Shao, and there is no one among the heroes who can match it.Cao Cao's family is in Bo County, which belongs to the Song Dynasty, so it is considered to be a fulfillment of Huang Xing's appearance in Ruixiang in the Song and Chu divisions.