What do the 24 solar terms stand for?

Twenty-four solar terms are special festivals in the calendar to express the change of natural rhythm and establish "December architecture", which contains a long cultural connotation and historical accumulation and is an important part of the long history and culture of the Chinese nation.

The 24 solar terms are: beginning of spring, Rain, Sting, Equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoxia, Daxia, beginning of autumn, Early Summer, Bailu, Autumnal Equinox, Cold Dew, Early Frost, beginning of winter, Light Snow, Heavy Snow, Winter Solstice, Slight Cold.

In order to facilitate memory, people made up twenty-four solar term song:

The spring rain shakes the spring and clears the valley, and the summer is full of mountains and summers.

Autumn dew, autumn frost, little snow in winter and cold in winter.

Twenty-four solar terms refer to the special festivals in the dry calendar that indicate the season, phenology, climate change and the establishment of "December construction". Initially determined by the bucket handle direction of the Big Dipper, bucket handle rotates around the east, south, west and north for a period of time, which is called one of the "years old" (photo); Every rotation cycle starts from beginning of spring and ends with the Great Cold.

The twenty-four solar terms are beginning of spring, rain, fright, vernal equinox, Qingming, Grain Rain, Changxia, Xiaoman, Busy, Summer Solstice, Xiaoxia, Daxia, beginning of autumn, Chushu, Bailu, Vernal Equinox, Cold Dew, Early Frost, beginning of winter, Light Snow, Winter Solstice, Slight Cold and Severe Cold.