Chen Collection, Lower Volume Radical: Steam (qì) Kangxi Strokes: 10 Page 599, Entry 14 Pronounced yin. The same as yin. Yin-yun refers to the harmonious blending and mixing of the yin and yang energy of heaven and earth. The Book of Changes (Yijing) states: The energy of heaven and earth, yin and yang, blends and mixes, allowing all things to flourish and develop. Also written as yin-yun. Wang Jia's Record of Picking Up Lost Tales (Shiyiji) records: There is a bird resembling a sparrow that exhales multicolored energy, spreading like clouds, called pingxiao. Du Fu's poem writes: Only the south will offer longevity, the auspicious energy is thick and swirling daily. Additionally, in Ban Gu's Treatise on the Precedents (Dianyin), it is written as yan-yun. In the Wei Great Banquet (Wei Daxiang), it is written as yan-yun. In the Master Who Embraces Simplicity (Baopuzi), it is written as yin-yun. In Wei Yuanpi's work, it is written as yun. The meaning is the same.