What's so particular about the sentence "Grain Rain wheat carries the flag, and the ears of wheat grow together in summer"?

Early summer used to be Qinghe Festival. It's rainy and sunny at this time. Its home is in the south of the mountain. Sometimes it is foggy when it rains, and the peak profile is clear when it rains. Catkin also flew out, and the sunflower smiled brightly. Metaphor new scenery, villain disappears! Just in time, everything needs rain. After the rain, there was a slight spring breeze in the big area, which quietly awakened everything that was sleeping. Look, you can't see the open roads and trees clearly. Only the river can vaguely see the flashing lights on fishing boats under the sunlight. After a long winter break and recharge, in this warm and humid season in Grain Rain, the buds of spring tea are green and tender. Especially in the north, during the Qingming period, in fact, tea buds are still very rare, and it is the first time to pick spring tea in Grain Rain.

Grain Rain is the sixth solar term among the 24 solar terms and the last solar term in spring. Grain Rain means "Rain gives birth to a hundred valleys", and the so-called "Spring rain is as expensive as oil". At this time, new crops need the moisture of rain most, and the grain can grow sturdily. Grain Rain is the last solar term in spring. As the saying goes, "There must be Qingming, and there must be rain in Grain Rain". After Tomb-Sweeping Day, the weather was fine and flowers were blooming. After Grain Rain, the rainfall increased and everything entered a rapid growth period. Spring has come, summer has come, and flowers have withered. Grain Rain grows fields. Sowing date of various dry land food crops in Grain Rain. Grain Rain seeds fell to the ground, and the seeds fell to the ground like rain. Corn, sorghum, millet, soybean and other crops are in late April to early May in spring. Planting begins in spring. Therefore, in Grain Rain, when seeds are sown, there is rain in the sky.

"The grass tree knows spring soon, and every red and purple fight wheatgrass. Huayang Jade Pod has no talent and thinking, but only solves the problem of flying snow. " Here, the grass tree is personified. The grass tree knows that spring will come back soon, so it blooms against time, competes with each other and finally wants to show its beauty. So it says spring flowers. This quatrain means that in late spring and March, catkins fly, spiders start to weave webs, and the spring breeze blows the spring rain. The spring rain washed the earth clean and fresh, and the ground was covered with fallen flowers. I don't know if Dongcheng is drunk.