Why should the Great Cold "wait for the third class"?

The three stages of a bad cold are: first, the chicken begins to eat milk, second, the bird is seriously ill, and third, the water moistens the abdomen. As soon as the chicken sensed the spirit of the spring sun in advance, it began to hatch its chicks. The second kind of weather means that falcons such as eagles are in a state of strong predation ability, hovering in the air looking for food to supplement energy to resist the cold. The third climate means that the ice in the water area has frozen to the center of the water, and it is the strongest and thickest. When it is extremely cold, everything will be turned upside down, and water will grow deep in the hard ice.

As the saying goes, "flowers and trees control the time, birds sing to report the agricultural time", flowers, trees, birds and animals all exercise regularly according to the seasons, which is also regarded as an important symbol to distinguish solar terms. Great cold is the last of the 24 solar terms in the whole year. Every year the Gregorian calendar is around 65438+1October 20th. At this time, the cold wave frequently goes south, which is the coldest period of the year in some parts of China. The wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold scene of ice and snow. There is also a saying in the agricultural proverb of China that "it's not cold in the severe cold, and it's not warm in the vernal equinox", which means that if the severe cold weather is not too cold, the cold climate will extend backward, and it will be colder in the vernal equinox next year.

In fact, it's not just that there are three phases in the Great Cold. In our traditional twenty-four solar terms, almost every solar term has three periods, which clearly describe the meteorological changes between different solar terms. The solar term Great Cold is one of the six solar terms in winter. At this time, the weather is extremely cold, hence the name Great Cold. At this time, the metabolism of yin and yang in human body is also in a rather slow time, so the health care of severe cold should be based on "hiding", and good care should be done in winter, which should not only reduce the damage of yang, but also avoid the consumption of essence and protect the qi of human kidney.

There is a saying that it is another year of severe cold in the countryside. From the Great Cold to beginning of spring, it is the time for the old and the new to hand over. Every cold season, people are busy saying goodbye to the old and welcoming the new, pickling delicious food and preparing for the New Year. Festivals such as sacrificial stoves and New Year's Eve dinners are also deserted. The cold solar term is full of joy and festive atmosphere, and it is a cheerful and relaxed solar term.