The winter solstice is a common saying, which means that the ancients thought that since the winter solstice, the days are getting longer and longer, the spirit of the sun is rising, and the spirit of the sun in heaven and earth is getting stronger and stronger, which represents the beginning of the next cycle and is a good day.

From winter to the sun, the sun shines directly on the Tropic of Capricorn (also known as the winter solstice daily line), and the sun is most inclined to the northern hemisphere, which has the shortest day and the longest night.

After the winter solstice, the sun slowly moves to the tropic of cancer, and the days in the northern hemisphere gradually get longer and the nights get shorter. Therefore, in ancient times, there was a saying that "the winter solstice is a sun born", which means that the sun rises gradually, from winter solstice to solstice.

Extended data:

The climate characteristics of winter solstice, the solar terms divided by the level gas method divide winter solstice into three periods:

First-class earthworms knot: It is said that earthworms are creatures that bend in the yin and stretch in the yang. At this time, although the yang has increased, the yin is still very strong, and the earthworms in the soil are still curled up;

Second, Elk Horn Dafa: Elk and deer belong to the same family, but yin and yang are different. The ancients thought that the elk horn faced the afterlife, so it was yin, while the winter solstice was yang, and the elk felt that the yin gradually receded and the horn was relieved;

Three-level spring movement: due to yang, the spring water in the mountain can flow and be moist at this time.

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