What is the origin of beginning of winter?

Regarding the origin of beginning of winter, it first appeared in the 24 solar terms classics, which said: "Li, also." He also said: "Winter is the end, and everything is harvested." It means that all crops have been harvested and stored at the beginning of winter, which not only represents the coming of winter, but also represents the end of crops and the hibernation of animals.

Because beginning of winter season is the season of harvest of crops and hibernation of animals, it also means that plants and trees have withered in winter, and everything has entered a state of hibernation, waiting for the arrival of spring, and then it will be full of vitality again.

In ancient times, people divided the beginning of winter into three stages to show that winter was coming.

The water begins to freeze as soon as it waits: it means that the water has begun to freeze in the solar term.

The second waiting place freezes: it means that the land begins to freeze during the solar term.

The pheasant here generally refers to a big bird like a pheasant, while the pheasant inside refers to a big clam, which means that when the solar term comes, the big bird like a pheasant is rarely seen, but it is often seen at the seaside at this time, so people think that the pheasant becomes a big clam after entering the water.

Extended data:

It is said that during the Eastern Han Dynasty, Zhang Zhongjing passed by Nanyang Dongguan on his way home. Seeing that all the local people were sallow and emaciated, he set up a medical shed and cooked some jiaozi for everyone.

At first, it was not called jiaozi, because this kind of food was like ears. After people ate it, the frozen ears healed, so people called it Joule, and later it gradually became jiaozi. Since then, people have had the custom of eating jiaozi in early winter, and their ears won't freeze after eating jiaozi.