What do you mean by cicada singing after autumn?

"After autumn, cicadas sing" means that when autumn comes, the weather becomes cold. The cicada in early autumn feels the yin rising day by day, so it sings louder and sadder. Beginning of autumn is the first 13 of the 24 solar terms and the first solar term in autumn, marking the official start of the Qiu Meng season. 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.

The first thing that "beginning of autumn" brings is the change of weather. From this day on, the sky was crisp, the moon was bright and the wind was clear, and the temperature gradually dropped. As the proverb goes, "It's cool in beginning of autumn" and "It's autumn in the morning and cold at night".