What does the old man mean by "three sorrows" on the day of winter solstice?

From winter to the future, the day is three days long, which means that the weather is short to a certain extent, and the winter will gradually become longer. Every day, there are about three days in the daytime, about three seconds. But the ancients' 3, 6 and 9 often don't refer to actual numbers, but only represent more meanings.

Actual observation: From the winter solstice, the direct sunlight position moved northward, and the daylight gradually extended, with an average increase of more than 90 seconds per day.

On the solstice of winter, the sun shines directly on the tropic of Capricorn. The winter solstice is also the shortest and longest day in a year in the northern hemisphere (north of the Tropic of Cancer). The arctic circle is in a state of permanent night, and the Antarctic circle is in a state of extreme day. From winter to the future, the position of direct sunlight began to move northward, the daytime hours in the northern hemisphere increased day by day, the sun height increased day by day at noon, and the sun shadow gradually shortened.

Extended data:

The winter solstice is the first day of nine cold days. As the saying goes, "winter solstice is nine years old", it begins to count nine days, and the ninth day is regarded as nine days. After 998 1 year, winter has passed, which is called number nine. Therefore, there is a folk "Nine-Nine Cold Relieving Map" to record the process of counting nine. In ancient times, the solar terms from the winter solstice were the starting point for calculating the 24 solar terms, as well as the starting point and end point for calculating the year.

As the Winter Solstice Festival used to be an important festival next to the New Year, there are many customs to celebrate it, and people will celebrate it by eating and drinking, so it is also commonly known as "Ya Nian", "Fat Winter", "Winter Solstice is as big as a year", "Fat Winter is thin" and "Fat Winter is thin".

It means that the ceremonies and customs of winter solstice are as grand as New Year's/New Year's Festival, or even more grand, called "Winter solstice Festival"); "Fat in winter and thin in years" means that during the Spring Festival, all kinds of diets have been consumed in large quantities, and "fat" is not as good as the solstice in winter. [4] In the Tang Dynasty, winter came to Japan bigger than the Spring Festival, and it developed into both winter solstice and the first year of the year (Spring Festival).

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