What is beginning of autumn?

Beginning of autumn is the thirteenth of the twenty-four solar terms, and it is the beginning of autumn. The bucket refers to the southwest, and the sun reaches the longitude of 135, and it is celebrated on August 7 or 8 of the Gregorian calendar every year.

"Reason" 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 gets cloudy.

In nature, everything begins to mature from luxuriance. Beginning of autumn means precipitation, humidity, etc. It is at the turning point of the year and tends 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, also known as the "Four Estates", are also one of the "Four Seasons and Eight Festivals" in ancient times.