What is the holiday consciousness? What does the solar term mean? The trees sprouted. What festival is this?

"festivals" are determined according to the needs of social activities, such as labor day and women's day; "Solar terms" are actually summarized and directed by people according to the changes of climatic zones and the growth and reproduction of animals and plants, such as Tomb-Sweeping Day and Autumn Equinox. Trees germinate, not in festivals, but in spring, that is, the solar terms of beginning of spring, fright and rain.