Reading guide: I'm not afraid of cold dew and evil ghosts, I'm afraid of frost and a frost, why should I be afraid? October 23 is the frost solar term, what is the point?
In autumn, there are white dew, cold dew solar terms, and the cold dew is followed by frost, the essential difference between these two solar terms is that the weather begins to cool down during the cold dew season, but it has not yet reached a very cold point, and the frost season marks the weather to further turn cold, and frost begins to appear. The cold dew is on October 7-9 every year, and the frost falls on October 22-24.
The most important thing is the dew, and the frost solar term is frost. In the eyes of the ancients, the cold dew was evil to ghosts, but it was actually the dew of the cold dew that was evil to ghosts.
It is recorded in ancient books: "The water in the cold dew season is poisonous, can rot food and spoil beans and wheat, and drinking it will damage the spleen and stomach and cause disease", so the folk have always regarded the cold dew as poisonous water, and this kind of dew is formed by the condensation of weak gold and cold water. Comparatively speaking, this water is too cold to drink.
"I'm not afraid of cold dew and evil ghosts, I'm afraid of frost and a frost", why are you afraid?
The old generation believes that this kind of dew is not suitable for crop growth, nor is it suitable for people to apply, if you do not pay attention, it will lead to the appearance of a disease, originally thought, this is enough to be unexpected, but I didn't expect the frost to fall, more said.
Frost is the last solar term of autumn, frost, the original meaning is the air near the ground when the temperature drops below 0 °C, a part of the water vapor contained in it adheres to the ground or near the ground, condenses into a white crystal.
In ancient books, frost has a more detailed explanation.
Xu Shen of the Eastern Han Dynasty "Sayings": "Frost, dew condenses." Morale and fluid are born from the ground, and thin and cold are frosty. "Hanshu, the Biography of Dong Zhongshu": "The frost is the reason why the sky kills." "Jade Chapter": "Lu Ning also." "Interpretation": "Its anger is miserable and poisonous, and everything is lost." "Da Dai Li": "If the yang energy wins, it will be scattered into rain and dew." If the yin qi wins, it will condense into frost and snow. "Yi Kun Hexagram": "Walking on frost and ice." ”
To summarize briefly, frost is made of dew condensation, because the weather is too cold, so frost appears, according to the "Interpretation": "Its gas is miserable and poisonous, and everything is lost." ".
The reason why people were afraid of frost was because it could cause everything to wither, including all kinds of crops, so this was one of the reasons why the ancients were really worried.
"Frost" also refers to the earth's qi, and the sky should not be locked on the ground. Yang energy is locked and cannot grow, yin energy begins to prevail, and the weather is very cold, which is also a reason for people to be afraid.
What is the point of frost on October 23?
Avoid frost, if the weather is relatively cold, when the frost falls, the dew condenses into frost, and the weather will become particularly cold, then we know how to avoid at this time.
The correct way is not to go to farming too early, or to get up early to exercise, otherwise, it is easy to be cold into the body, which will lead to diseases.
To sum up: people are not afraid of cold dew because it is only relatively cold, but the appearance of frost means a continuation of cold weather, which will have a great impact on crops. Therefore, we know how to avoid it, and don't let the cold invade the body and fall into the root of the disease.