What is the traditional significance of the vernal equinox?

1. From the perspective of traditional culture, this day is a day for holding a grand sacrifice ceremony. The Book of Rites records: "Altar." Ying Da Shu by Confucius: "Also called vernal equinox". In the past, the son of heaven would lead ministers to sacrifice to heaven, and ordinary people could not participate. Later, it evolved into a folk ceremony, and many families would go to the grave and take offerings up the mountain, first from the ancestral grave and then to the ancestral grave. Climate, beginning of spring to Long Summer is the ancient spring, the vernal equinox is in the three months of spring, and the spring is equally divided. "Spring and Autumn Stories Yin and Yang in and out" said: "The vernal equinox, Yin and Yang are also half-phase, so it is cold and summer day and night." Therefore, for the ancients, this is an important solar term.