The vernal equinox is one of the twenty-four solar terms, which refers to the moment when the sun reaches 0 degrees of the yellow meridian, and usually appears on March 20th or 2 1 on the Gregorian calendar. The vernal equinox is the neutral spirit of spring and an important solar term of the lunar calendar.

In ancient China, the vernal equinox was a very important solar term. The vernal equinox marks the official beginning of spring, the earth comes back to life and everything recovers. Huainanzi said that "the vernal equinox is also the day when heaven and earth meet in Thailand". At this moment, the forces of Yin and Yang between heaven and earth are balanced and the universe is harmonious, which symbolizes the beginning of the growth of all things.

The ancients believed that on the vernal equinox, herbs began to grow, everything began to sprout, and people began to be busy with farming. According to "Zhou Li", "Spring Equinox Festival, God gives time, Tupu, Gu Shu, everything is fragrant, and the ceremony is also." Therefore, on the vernal equinox, people will hold ceremonies such as offering sacrifices and praying for good harvest and peace.

In addition, Tomb-Sweeping Day before the vernal equinox and solar terms is also one of the important traditional festivals in China. Tomb-Sweeping Day usually falls on15th day around the vernal equinox, which is a day to worship ancestors and sweep graves. In Tomb-Sweeping Day, people will sort out the graves of their ancestors, sweep graves and worship them, and pray for their blessings and peace.

In a word, the vernal equinox is of great significance in the ancient culture of China, representing the beginning of spring and a vibrant scene, and it is also an important moment for people to pray for a bumper harvest and peace.