What do you mean by season and winter?

China has a long history and a long culture, which can be seen from the division of seasons and months and the different names of ancient ancestors. For example, we often say "early spring", "beginning of spring", "Mid-Autumn Festival" and "beginning of winter", which fully combine our lunar calendar with the traditional 24 solar terms. So what does winter really mean?

What do you mean by season and winter? Seasonal winter refers to the third month of winter, corresponding to the twelfth lunar month (December), including two solar terms: slight cold and severe cold. The ancients used "Meng", "Zhong" and "Ji" to identify the twelve months of the year. Meng is in the first month, Zhong is in February and Ji is in March. So the three months of winter are called the winter solstice, the winter solstice and Ji Dong, and so are the other three seasons.

What can be called "Jidong" or "Midwinter"? This time is the coldest "Sanjiu" and "Jiu Si" in winter, so there is also a saying that "count nine in the middle of winter". In the dead of winter, the ice is long and the snow is several feet deep. There is also a saying called "poor days". Source: "The evil wind vibrates the wild, and the flying snow is poor." (Selected Poems of Yan Yanzhi)

At this time, because the ground can absorb less heat from the sun, the heat dissipation at night exceeds the heat absorbed during the day. So the heat stored on the ground has been exhausted. Because the heat can't keep balance, the ground temperature drops gradually and the weather is getting colder and colder.

How to express the four seasons in ancient times? There were two ways to express the four seasons in ancient times. One is to use "Meng Zhongji" to represent the three months of each season in the summer calendar, namely Meng Chun, Zhongchun and Ji Chun; Xia Meng, midsummer, the last month of summer; Qiu Meng, Zhong Qiu, Qiu Ji; Meng Dong, Midwinter, Ji Dong.

There is also a saying called early spring, Yangchun, late spring, early summer, midsummer, midsummer, early autumn, midsummer, early autumn, early winter, winter solstice and midwinter. Because of different habits, the names handed down are different.