Beginning of autumn is the 13th solar term of the "24 solar terms" and the beginning of autumn. The bucket refers to the southwest, and the sun reaches the yellow meridian135, and it meets on August 7 or 8 of the Gregorian calendar every year. "Li" means the beginning; "Autumn" means that the grain is ripe. The change of the whole nature is a step-by-step process, and beginning of autumn is a turning point in which the yang gradually closes, the yin gradually grows, and the yang gradually turns into the yin.
In nature, everything begins to grow from luxuriant to mature. Beginning of autumn is the third hot solar term among the 24 solar terms, second only to the big summer and the small summer. In the order of solar terms, summer comes after beginning of autumn, and the second solar term "summer comes" (the last summer) in autumn. Twenty-four solar terms include "three summers" (slight summer, great summer and summer), and there is a "beginning of autumn" solar term in the middle of the "three summers".
After beginning of autumn, it is the summer (the last summer). "Three summers" and "three days" both represent hot and humid weather, and "three days" involve four solar terms: slight summer, great summer, beginning of autumn and Chu summer. Among the 24 solar terms, summer days are longer. Beginning of autumn means that precipitation, humidity, etc. are at the turning point of the year and tend to decrease or decline. Since beginning of autumn, the sun be the spirit gradually closed, and everything was restrained.
Beginning of autumn, beginning of spring, long summer and beginning of winter are also called "Four Stands", which is also one of the "four seasons and eight festivals" in ancient times. Autumn is the season when the grain is ripe and harvested. In beginning of autumn, there was a custom of offering sacrifices to the land gods and celebrating the harvest in ancient times. There are also customs such as "pasting autumn fat" and "biting autumn".
Historical origin
Beginning of autumn, one of the "Four Stands", indicates the beginning of autumn, the beginning of grain maturity and the arrival of harvest season. "Li Shu" said: "Dou means that the southwest dimension is beginning of autumn, and the yin means that everything begins to kill when it comes out of the ground. According to the instructions of autumn, the grain is ripe." "Shuo Wen Jie Zi": "Autumn, the grain is ripe." The change of the whole nature is a step-by-step process, and beginning of autumn is a turning point in which the yang gradually closes, the yin gradually grows, and the yang gradually turns into the yin.
As Guanzi said, "In autumn, the yin qi begins, so everything is harvested." There are "three summers" in the twenty-four solar terms, namely, slight summer, great summer and summer, which are the first summer, heatstroke and the last summer respectively. There is also a "beginning of autumn" solar term in the middle of the "Three Summertime", and it is the last summer after beginning of autumn. Both "Three Summertime" and "Three Volts" represent hot and extremely hot weather, and the summer days in the 24 solar terms are longer.
Long summer days are beneficial to the growth and yield of crops, and crops should have enough growth time and heat. If the summer heat time is short, the growth time and heat of crops are not enough, and the growth and yield will be affected. Twenty-four solar terms are the product of ancient farming civilization, which is the reflection of farming culture on festivals.