Literature Reference: On the day of the Qingjing Festival, the air occupies the center of the two realms. Alone I rejoice in the day of ascending heights, first to know the winds that respond to the season. Auspicious signs manifest the brilliance of Shun's transformation, celebrating the wisdom of Yao. Moreover, with the leaves that bear the season, they will also enter the rhythm in harmony. Source from 'Winter Solstice: Auspicious Winds Respond to the Season'.