Why do you say "it rains in the Qingming Festival"?

The phrase "It rains in succession during the Qingming Festival" comes from the poem "Tomb-Sweeping Day" written by Du Mu, a poet in the Tang Dynasty, which means that it will rain on this day in Tomb-Sweeping Day, or around these days. Tomb-Sweeping Day, also known as the Walking Festival, is a traditional festival in China and one of the most important sacrificial festivals. On that day in Tomb-Sweeping Day, people will hold activities such as not lighting a fire, having an outing and swinging. Commemorate their ancestors in the form of grave-sweeping worship. Because, after all, it is inevitable that there will be some sadness, some sadness and some tears. I personally understand that God is also very sad. So many people will cry when they die, and it may rain all the time. There is a saying that "it rains in the Qingming Festival".

During the Qingming Festival, there are many rains, largely because of the change of seasons. When winter goes and spring comes, cold air meets and concentrates in the atmosphere, forming raindrops and Qingming rain. There is a saying: On March 3rd and September 9th, everything returns to the river, which means that it is windy and cold at this time, and it will always rain, but this rain is also a life-saving rain for farmers' uncles, because Tomb-Sweeping Day is around April and May every year. If it rains a lot at this time, it will bring great convenience to the farmer's uncle's spring ploughing production, that is, people often say that spring rain is as expensive as oil, although sometimes it rains heavily, sometimes.

Just like a theorem, almost every Tomb-Sweeping Day will rain, and God may rain with Lei Gong and Rem in advance, which brings great convenience to the farmer's uncle's spring ploughing production. My mother-in-law has agreed that this cold food, this sad and unforgettable day, will rain heavily, and there will be a saying that it rains in succession during the Qingming Festival.

?

?