Rain, rain, spring water, good rain, no rain, less spring water.

Rain, rain and spring water are good, which means: in the rainy solar terms, if it rains, the precipitation in spring will be good. Rain without rain and spring without water mean: in the rainy solar terms, if it doesn't rain, there will be less precipitation in spring this season.

Spring includes January, February and March of the lunar calendar. The solar calendar is about 12, 1, February.

Spring rains in January, vernal equinox in February, and Qingming in Grain Rain in March.

Rain is in early spring, so there must be rain in this solar term to make spring returns. Only under the nourishment of rain can everything thrive. If there is no rain in the rainy season, it is an abnormal weather phenomenon. According to the experience of ordinary people in farming, if it doesn't rain, the precipitation in the whole spring is not good. Only when it rains will there be plenty of rain in the whole spring. And precipitation plays a great role in agricultural production. Especially in Grain Rain in March, it is not difficult to see how important it is to the growth of grain from the name of the festival, so it was named "Grain Rain". If it doesn't rain in Grain Rain, it is conceivable that it will be disastrous for agricultural production. That's why there is such a proverb.