The Yellow Emperor's Classic of Internal Medicine, Chapter 55, details acupuncture techniques for various ailments. The text describes specific needle insertion methods for conditions affecting the head, abdomen, tendons, muscles, bones, and the overall energy flow (Qi). It emphasizes the importance of accurate needle placement to avoid damaging tissues while achieving therapeutic warmth. Different approaches are outlined based on the location and nature of the illness, such as treating cold and heat imbalances or addressing deep-seated pain. The chapter concludes with treatments for recurring illnesses and severe conditions like "great wind."