1. The beginning of autumn means the end of summer and the beginning of autumn. It is a solar term that reflects the season. The beginning of autumn is when the sun reaches 135° of ecliptic longitude on August 7 or 8 every year. The "Li" of Liqiu means beginning, and "Autumn" refers to the period when crops mature.

2. According to the "Collection of the Seventy-two Hours of the Moon Order": "Autumn means pulling, and things are pulled here." The Beginning of Autumn not only heralds the end of the hot summer, but also the coming of autumn. It also means that the plants and trees are beginning to bear fruit and the harvest season has arrived. At this time in central my country, early rice is harvested, late rice is transplanted, and autumn crops enter an important growth and development period.

3. The ancients regarded the Beginning of Autumn as an important moment at the turn of summer and autumn, and have always attached great importance to this solar term. According to records, on the day of the Beginning of Autumn in the Song Dynasty, the palace had to move the phoenix trees planted in pots into the palace. When the time of "Beginning of Autumn" came, the Taishi official would loudly play: "Autumn is coming." After the performance, one or two sycamores fell down in response. A leaf symbolizes autumn.

4. The "beginning of autumn" has arrived, but it does not mean that the autumn weather has arrived. The climate seasons are divided according to the "climate average temperature", that is, when the local average temperature is below 22°C for 5 consecutive days, it is considered the true autumn season. China has a vast territory, and although the climate varies from place to place, most of the weather has not yet entered autumn at this time. Moreover, the last day of the hot dog days of summer is still on the third day after the beginning of autumn.

5. Especially in southern China, this solar term is still the summer heat. At the same time, as the typhoon rain season is gradually gone, the temperature is even hotter. Therefore, Chinese medicine calls the period from the beginning of autumn to the autumnal equinox " It is called "Long Summer".