What is the meaning of the Chinese zodiac?

Laughing refers to snakes. According to relevant public information, there is a saying in China that it is "three days in summer and three or nine days in winter", also known as "three or nine days", which generally refers to when snakes hibernate. Three or nine days refers to the third nine days from winter to the future, that is, the nineteenth day to the twenty-seventh day of the winter solstice, which is the coldest time of the year. Snakes hibernate in the coldest time, which is the saying.