What does it mean that the rain sends acacia from afar in Qingming Festival?

Qingming rain sends lovesickness, which means: I trust people who love each other through Qingming, and I can only miss them secretly.

Qingming is introduced as follows:

Qingming, one of the 24 solar terms, is the fifth solar term in spring. When the sun reaches longitude 15, the sky is clear. During the Qingming period, the atmosphere was clear and everything appeared, hence the name. Qingming is both a solar term and a festival. Tomb-Sweeping Day is a good time for spring ploughing and planting; Tomb-Sweeping Day is a traditional festival for people to express their feelings and comfort themselves.

Tomb-Sweeping Day Qi provides important conditions for the formation of Tomb-Sweeping Day customs in terms of time and weather, and this solar term is considered as one of the origins of Tomb-Sweeping Day. In ancient China, Qingming was divided into three stages: prophase and prophase. Second, voles become owls; Waiting for the beginning of the rainbow, I understand that the white paulownia blooms first, and then the voles disappear.

They all went back to the cave, and then the rainbow could be seen in the sky after the rain. In Tomb-Sweeping Day, the weather in most parts of China won't be cold, so it's spring. But the weather here, the south and the north seem to be two different days, the north is dry and rainy, and the south is wet and rainy.

Tomb-Sweeping Day is first of all a very important solar term. As soon as Tomb-Sweeping Day arrives, the temperature rises, which is a good season for spring ploughing and planting. Therefore, there is a saying that "melons and beans are planted before and after Qingming". Agricultural proverb "Planting trees is not as clear as Qingming". [5] The main customs of Qingming are: forbidding fire, sweeping graves, climbing mountains, cuju and inserting willows.