What kind of custom with a special smell spreads in the spring breeze?

Vertical eggs are a unique custom in the vernal equinox solar terms. At this time, the climate is equally divided day and night, the earth axis and the earth's orbital plane around the sun are in a state of relative force balance, and the earth's magnetic field is also relatively balanced, so the standing stability of eggs is the best.

On the vernal equinox, there is a custom of eating spring vegetables all over the country. Spring vegetables are not a kind of vegetables, but the general name of spring vegetables, such as shepherd's purse, Toona sinensis and so on. Every vernal equinox, everyone will go to the fields to pick wild vegetables and go home to make spring soup with fish, which means safety and health.