The origin of Tomb-Sweeping Day in the 24 solar terms

The Origin of Tomb-Sweeping Day in the Twenty-four Solar Terms;

The twenty-four solar terms were originally determined by the direction of Beidou bucket handle. Bucket handle started from "Yin position" and turned clockwise, one year old. When the barrel handle points to the "B position", it is clear. Therefore, Huainanzi said, "Fifteen days after the vernal equinox means B, and the wind will clear up." Another article, A Hundred Questions at the Age, explains this: "At this time, everything grows clean and bright. So it is called Qingming. " Tomb-Sweeping Day was named after "The Riverside Scene at Qingming Festival shows everything". Qingming is a vibrant season, and it is also the decline season of Yin Qi.