Song No.9 says: Did you see willow trees by the river in May 1969 because they sprouted earlier than other places?

Yes, willows germinate earlier in spring. "May 969, see willow by the river", a wisp of warm wind, a little green bud. As the vanguard of spring, it can be said that it is the prophet of "Liu" in spring water heating.

Counting nine "is not a solar term, it can be regarded as a punctual method invented by the ancients, and at the same time, it has also derived entertainment methods such as" Nine-Nine Cold Topography "to calculate and kill the long winter.

It is generally considered as a folk solar term in China, also called "Winter 99". It is called "Dujiu" from the winter solstice, and then it is called "Jiu" every nine days. Waiting for nine "nines" adds up to 8 1 day, which is called "going out of nine", which is the season of warm spring in bloom.

When the custom of counting nine originated, there is no accurate statement so far. But according to ancient records, it existed at least in the Southern and Northern Dynasties. There is a passage in the Chronicle of Jingchu written by Zonggu in the Liang Dynasty: "The winter solstice is 998 1 day, and the cold ends." ?

Someone once wondered why we should count "nine" instead of "two", "three" and "eight". There is a saying that in the traditional culture of China, "Nine" is the highest number of "Yang" and the largest number. The accumulation of "Zhiyang" means that it gradually decreases until the end of nine cycles, which means that the cold has gone and the warmth is coming.