The solstice day and night in winter is the longest in a year. What does this mean?
The solstice in winter is the extreme point of direct sunlight spreading to the south. From winter to the sun, the sun shines directly on the tropic of Capricorn, and the sun is most inclined to the northern hemisphere, and the elevation angle of the sun is the smallest. In all parts of the northern hemisphere, the days are the shortest and the nights are the longest.
The solstice in winter is also the turning point of direct sunlight returning to the north. After this day, it went back, and the direct sunlight began to move northward from the Tropic of Capricorn (23 26' s), and the sunlight in the northern hemisphere (China is located in the northern hemisphere) increased day by day.
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In Jiangnan water town, there is a custom that the whole family get together to eat red beans and glutinous rice in the evening from winter to Sunday. According to legend, there was a man named Gong. His son was incompetent and evil. He died on the Winter Solstice. Become a plague ghost after death and continue to harm the people. However, this epidemic ghost is most afraid of red beans, so people cook red bean rice from winter solstice to drive away the epidemic ghost and prevent diseases.
Gusu region attaches great importance to the solar terms of the winter solstice. There is a proverb in Gusu region: "The winter solstice is like a new year". Traditional Gusu people will drink winter wine on the night of winter solstice. Winter wine is a kind of rice wine, which is brewed with sweet-scented osmanthus and has a pleasant aroma.
Gusu people will drink winter wine on the night of winter solstice, and at the same time, they will serve all kinds of braised beef and braised mutton. In the cold winter, winter brewing can not only drive away the cold, but also entrust Gusu people with their good wishes for life.