The most vigorous yin-qi solar terms

In a year, the sun is the heaviest in summer and the yin is the heaviest in winter.

It is the solstice of summer, the heaviest day of the year, so the night is the shortest and the day is the longest. Yin turns to Yang, which is the solstice in winter, and the day is the heaviest in a year, so the night is the longest and the day is the shortest.

Therefore, these two solstices in a year are two turning points. The summer solstice is noon, when the sun is full, the yin begins to grow in the depths of the earth, and the yin gradually rises, making the heat unbearable. When the yin dissipates heat, it will be autumn. The solstice in winter is at the peak of Yin Qi, and the sun's spirit begins to grow deep underground, and the sun's spirit gradually rises and cools. When the yang dissipates the cold, it is the season when the swallows come.

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In fact, the cultivation principle of winter comes from the complex divination in Zhouyi, because the complex divination is a kind of constant divination. The premise of prosperity is that the earthquake below is moving. Although Kun was oppressed by five yin, his character was smooth. Because one year, yang begets yin, and the "repeated way" of yang declining and yin begets is a natural truth. After winter, Yang grew taller and grew with it.

Therefore, the divination in the Book of Changes repeatedly emphasizes that "recovery is not far away, cultivate one's self-cultivation" and "recovery is auspicious", all of which emphasize that cultivation and rest should conform to the spirit of the sun and gradually generate vitality, and the purpose of cultivation, rest and maintenance is to cooperate with the ecological activities in the new season. This is the extraordinary wisdom of the ancients, that is, putting themselves in nature and supplementing them according to the seasons, not necessarily requiring any special fitness skills.

For example, "Bao Sheng Xin Jian" said that this month, the internal heat is hidden and needs to be nourished, which is the basis for the rise in the next spring.

According to the book "Guang Ji at the Age of Years", you should drink red bean porridge from winter to Sunday. Because of the strong kidney and weak heart and lungs this month, you need to regulate your spleen and stomach and protect your heart and lungs. Red beans, called "Valley of the Heart" by Li Shizhen, help to regulate the stomach by promoting body fluid and urination. Radish has the same effect.