Secret Teachings on Qi Cycles 素问六气玄珠密语

Originally attributed to "Qi Xuanzi," who is identified as Wang Bing of the Tang Dynasty.

Both Secret Catalog (Southern Song Dynasty) and Comprehensive Records of Literature·Bibliographic Survey record "Ten Volumes of Mysterious Pearls: Secret Sayings" without specifying the author.

When Lin Yi and others in the Northern Song Dynasty revised Wang Bing’s Annotated Commentary on Suwen, they pointed out: "Wang’s Mysterious Pearls has not been passed down to the world; today there exist Mysterious Pearls in ten volumes and Hidden Meanings of Zhao Ming in one volume, which are presumably works falsely attributed to him by later generations." It is evident that this book was forged by someone in the Northern Song Dynasty under the pseudonym of Wang Bing. Currently, there is an old handwritten copy collected by the Ding Yusheng family, consisting of ten volumes and thirty chapters. The version in The Daozang comprises seventeen volumes and twenty-seven chapters, included in the Tai Xuan Section. Additionally, the version in Complete Library of Four Treasuries shares the same number of chapters and volumes as the Daozang version. Prefaced by a preface, the book states that it contains secret teachings orally transmitted by Xuan Zhuzi, hence the title Mysterious Pearls of the Six Qi: Secret Sayings. Mostly based on Suwen, the book elaborates on and develops the theory of the Five Circuits of Qi and Six Qi Stages. The so-called "Five Circuits of Qi and Six Qi Stages" refers to the corresponding relationship between Yin and Yang and the Five Elements and the human body’s Five Zang Organs and Six Fu Organs, as well as the operational and transformative laws of Yin-Yang and Five Elements Qi in the Zang-Fu organs throughout the four seasons of a year. Ancient physicians relied on this theory for Health Preservation, preventing and treating diseases. However, the book rarely discusses medical prescriptions and instead incorporates divination and auspicious omen practices, making it not purely a medical work. Therefore, General Catalog of the Complete Library of Four Treasuries classifies it under the category of divination and numerology.