What is the meaning of the Great Heat solar term? Do you know the origin of the Great Heat solar term?

What is the meaning of the Great Heat solar term? Do you know the origin of the Great Heat solar term?
Although everyone knows about the Great Heat solar term, not all of us know what it means. So, let’s take a look at what the Great Heat solar term means. As the Poinciana flowers are in full bloom, the sixth lunar month is approaching. Come to Mr. Shuimo's website to learn more about the unique sixth lunar month of 2020!

What is the meaning of the Great Heat solar term?

"Shu" means hot, and the Great Heat, as the name suggests, is very hot.
Great Heat, the twelfth solar term among the 24 solar terms, is also the hottest solar term in the year. Its climate characteristics are: "When the Big Dipper points to Bing, it is the Great Heat. The weather at this time is much hotter than the Lesser Heat, so it is called the Great Heat." The Great Heat is the hottest time of the year around the middle of the dog days. In many areas of my country, high temperatures of 40 degrees Celsius often occur. The Great Heat season is the period when thermophilic crops grow the fastest, and it is also the season with the most thunderstorms. There is a saying: "If lightning appears in the east, there will be no rain; if lightning appears in the west, you will not be able to escape in time." This means that in the summer afternoon, if lightning appears in the east, the rain will not fall there, but if it appears in the west, the rain will come soon and you will not have time to avoid it. At the same time, various meteorological disasters such as drought, flood, and wind disasters are also most frequent in many areas.

What are the three signs of Great Heat?

In ancient my country, the Great Heat was divided into three phases: "The first phase is when rotten grass turns into fireflies; the second phase is when the soil becomes moist and the heat becomes sultry; the third phase is when heavy rains come."
The first sign is that there are more than 2,000 species of fireflies in the world, divided into two types: aquatic and terrestrial. Terrestrial fireflies lay eggs on dead grass. During the Great Heat, the fireflies hatch from their eggs, so the ancients believed that fireflies were transformed from rotten grass.
The second phase means that the weather starts to become hot and humid, and the land is also very wet;
The third phase means that there will be frequent heavy thunderstorms. These heavy rains will reduce the summer heat and humidity, and the weather will begin to transition to the beginning of autumn.

Do you know the origin of the Great Heat solar term?

When the sun reaches 120° of the ecliptic longitude, it is the "Great Heat" solar term. "Great Heat" and "Less Heat" are both festivals that reflect the degree of heat in summer. "Great Heat" means extreme heat. "Collected Explanations of the 72 Seasonal Changes" states: "In the middle of June, ... heat is divided into small and large heat. The beginning of the month is small, and the middle of the month is large. Now the heat is still large." This is around the "middle of the dog days", when most parts of the country enter the hottest period of the year and it is also the fastest growing period for warmth-loving crops. However, natural disasters such as droughts, floods, and typhoons occur frequently, and the tasks of drought resistance, flood drainage, typhoon prevention, and field management are very heavy.

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