What are the three solar terms of the first frost and the first frost?

1. jackals are sacrificial animals: the word "jackals are sacrificial animals" first appeared in Yizhoushu: "On the day of the first frost, jackals are sacrificial animals". He also said, "It is not good for jackals not to sacrifice animals." It means that in this solar term, the jackal began to catch prey, sacrificed the beast with the first thing he caught, and returned the book to heaven with the beast, which paved the way for offering autumn gold. Like the harvest of the new valley on the earth, it is used to worship the sky to show the return and pray for good weather in the coming year. It is the meaning of animals and the foundation of human beings.

2. Second, the vegetation is yellow: paraquat is exhausted in autumn, and frost butterflies fly. In autumn, the west wind is rolling, knocking down leaves and blowing drafts. The gradually cooling climate has destroyed all the vitality of nature again and again. Green decreases, red disappears, and geese disappear. And people's emotions have also entered a deep trough. Don't hate to stay sad, wind and rain are bitter in late autumn, touching people's hearts.

3. Third-class worms are salty: the worms don't eat in the cave, and they hang their heads and go into hibernation. Nature at this time is a silent beauty. After a vigorous spring, a lively summer, a festive autumn and the cycle of life, it entered a dormant state. There are no traces of bees and butterflies, and the stinging insects are silent, all preparing for the long winter. It is a gesture of practice, looking forward to the new students in the coming year.