The meaning of the vernal equinox in 24 solar terms is

The "vernal equinox" means half, that is, it is divided into two parts, day and night are equally divided, and the cold and summer are balanced.

The vernal equinox refers to the position of the sun between 0 degrees and 15 degrees of the yellow meridian during the period from March 20th to April 5th. On the vernal equinox, the sun shines almost directly on the equator of the earth, and the whole world is almost as long as day and night. In addition, the vernal equinox also means sharing spring equally. Traditionally, it is spring from beginning of spring to long summer, and the vernal equinox is in the middle of three months in spring.

In ancient times, the vernal equinox was also called "Japan-China", "Day and Night Equinox" and "Spring Equinox Moon". During the vernal equinox, women and children in China have the custom of flying kites, and there is also a folk proverb that "all vegetables are not fresh after eating shepherd's purse". In Lingnan area, the "vernal equinox" has the custom of eating spring vegetables. In China, there is also a folk proverb "When the vernal equinox comes, the eggs are beautiful". Every spring equinox, tens of millions of people all over the world are doing experiments in the game of "vertical eggs".