The symbolic significance of Grain Rain.

Grain Rain, as its name implies, means sowing grain and raining. In other words, this is the best time for sowing, transplanting and ordering beans. Because the rainy season in Grain Rain will increase, which is very beneficial to the growth of cereal crops.

Grain Rain means that the cold wave weather is basically over and the temperature rises rapidly. Grain Rain is the sixth of the 24 solar terms and the last solar term in spring. It is celebrated every year from April 19 to April 2 1 day in the Gregorian calendar. Grain Rain means "Rain gives birth to hundreds of valleys", and the precipitation has increased obviously at this time. Seedlings and new crops in the field need the moisture of rain most. Only when the rainfall is sufficient and timely can cereal crops thrive.

In ancient China, Grain Rain was divided into "three stages": "The first stage began at Houping; The second time, pigeons blow feathers; The third is that Dai Sheng fell to Sang. " After Grain Rain, rainfall increased, duckweed began to grow, then cuckoo began to remind people to sow, and then Dai Sheng birds began to be seen on mulberry trees. In ancient times, the so-called "rain gives birth to hundreds of valleys" embodies the significance of modern agricultural climate of "Grain Rain".

There is a custom of picking tea in southern Grain Rain. It is said that drinking tea on this day in Grain Rain will clear fire, ward off evil spirits and improve eyesight. Therefore, no matter what the weather is in Grain Rain, people will go to Chashan to pick some new tea to drink.

There is a custom of eating Toona sinensis in northern Grain Rain, and Toona sinensis is on the market around Grain Rain. At this time, Toona sinensis is mellow and refreshing, with high nutritional value. It is said that Toona sinensis is tender as silk before the rain. Toona sinensis has the functions of improving immunity, invigorating stomach, regulating qi, relieving diarrhea, moistening skin, resisting bacteria, diminishing inflammation and killing insects.