What is the meaning of summer heat in the twenty-four solar terms?

Being in summer means "going out in summer", and leaving in the heat means that we are about to enter the autumn with meteorological significance.

When the sun reaches longitude 150, it is the heat of the 24 solar terms of the lunar calendar. Summer is a solar term reflecting the temperature change. "Chu" means to hide and die, and "early summer" means that the hot summer has passed.

"Twenty-four solar terms" said: "If you go, you will stop, and the summer will stop here." "Chu" means termination, which means that the summer heat is about to pass, the summer heat will end on this day, and the temperature in most parts of China will gradually drop. Being in summer is not only different from mild summer heat and severe summer heat, but also different from mild cold and severe cold solar terms. This is a solar term representing the transition from hot to cold.

China divided the summer heat into three periods: "The eagle is a sacrificial bird; Second, wait for the beginning of heaven and earth; Three Hou Wonaideng. " In this solar term, eagles began to prey on birds in large numbers, and everything in the world began to wither. The word "Henaideng" is the general term for millet, millet, rice and sorghum crops, and "Deng" means maturity.