Why did beginning of spring hit the spring cow?

A few days ago, beginning of spring put a cow made of mud outside the east gate of the county seat, and a dummy with farm tools and whips was set up next to it as a "cultivator" to show that spring has arrived and agricultural matters have been prepared in advance. At the beginning of spring, the government will offer offerings to Mang Shen and Tu Niu, and hold a grand ceremony of "beating cattle" at noon. Officials beat the local cattle three times with red and green whips or willow branches, and then handed them over to subordinates and farmers for beating in turn. Playing the bull's head in spring symbolizes auspiciousness, playing the ox's waist in spring symbolizes bumper harvest, and playing the ox's tail in spring symbolizes peace in the four seasons.

The folk custom of whipping spring cattle is a custom of persuading farmers and praying for a bumper harvest. After whipping the spring cow, it must be broken. People grab the soil or food in the belly of spring cattle, thinking that it will be a good year if the soil or food they grab is scattered in their own fields.

Beginning of spring is the first of the 24 solar terms. Standing means "start"; Spring represents warmth and growth. Twenty-four solar terms were originally formulated on the basis of "variable stars". When the bucket handle of the Big Dipper points to the shade, it is beginning of spring. At present, solar terms are determined according to the longitude of the sun. When the sun reaches longitude 3 15, it will be the beginning of spring, and the festival will be held from February 3 to 5 of the Gregorian calendar every year.