Beginning of autumn is the 13 of the 24 solar terms and the first solar term in autumn, which marks the official start of the Qiu Meng season: "Autumn" means that summer is cool. In early autumn, Beidou points southwest. From this day on, autumn began, the autumn was crisp, the moon was bright and the wind was clear. Since then, the temperature has gradually decreased from the hottest time.
Beginning of autumn not only indicates that hot summer is coming, but also autumn is coming. It also means that the vegetation begins to bear fruit and children, and the harvest season is here. Therefore, people have the custom of offering sacrifices to the land gods and celebrating the harvest in early autumn. There is a custom of "beginning of autumn gnawing autumn melons" in the south. Eat more watermelons in autumn to prevent autumn dryness and form a custom for a long time. Zizhi, published in the Republic of China, records: "beginning of autumn ate watermelon the day before, which is called gnawing autumn." It also means welcoming the arrival of autumn. ?