When the sun reaches the celestial longitude of 240 degrees on November 22 to November 23 each year, it’s the time for “Light Snow”. Some areas along the Yellow River start to snow. It’s usually light snow, freezing in the night and melting in the morning. The soil is not cold enough, and snow can’t accumulate a lot on the ground. During this period, the rainbow is gone since it doesn’t rain anymore. The Yang Qi goes up and Yin Qi flows down and all things lost vitality.