Has Xiaohan ushered in the first snow of the New Year in many places across the country?

"The east wind blows and the rain is cold." Slight cold is the 23rd solar term among the 24 solar terms in the lunar calendar and the fifth solar term in winter, which marks the official start of the winter season.

The ancients said: "Cold air is cold for a long time, and the little one is not extreme." In the eyes of the ancients, cold is a process of continuous development and accumulation. The slight cold season is also the winter season. As the saying goes, "March 9 is cold" and "March 9 is out of the ice", and folks often say that "a slight cold is better than a severe cold". Therefore, the arrival of slight cold also means the coldest start of the year.

First,? Han Xiao San Hou

First-class Yanbei Township: Among migratory birds, geese migrate along yin and yang, and at this time, the yang has moved, and geese begin to migrate northward.

Second, magpies began to build nests: at this time, magpies could be seen everywhere in the north, and they felt the sun be the spirit and began to build nests.

At three o'clock, the pheasant began to sing: the word "pheasant" means singing, and the pheasant will sing near April 9.

Second,? Why is slight cold the coldest?

In the last solar term "winter solstice", the ground got the least solar heat, but there was still some heat in the deep soil that could radiate upwards, so it was not the coldest time of the year. In the slight cold, the heat in the deep soil is lost to the lowest point. Although the days are slightly longer and the amount of light and heat of the sun is slightly increased, it is actually the most difficult time to make ends meet, so it becomes the coldest season all year round.

From the winter solstice, the "99" and "39" with cold weather are the coldest periods, and they always fall within the slight cold solar terms. There is an anonymous saying in Song Ci, "Clouds and dusk are the same in the slight cold season, and the wind is fierce" ("Looking at Mei"), which is exactly the cold of the slight cold.

Why did the ancients add a heavy cold after the slight cold?

Since the slight cold is colder, why did the ancients increase the cold after the slight cold, instead of arranging it backwards?

It turns out that the traditional culture of China pays special attention to "extremes meet" and thinks that the "heaven" of alternating cold and summer is to recover quickly after a cold. If you get a bad cold before the slight cold, and you can't feel "recovered" after the coldest, then put the bad cold behind you and let it return to beginning of spring quickly after the bad cold, which is in line with the thinking habits of China people.