This Chapter from the Yellow Emperor's Classic of Internal Medicine details the locations of acupuncture points along the body's twelve main meridians, including the Du and Ren meridians. The text meticulously lists the number and precise anatomical positions of these points for each meridian. Each meridian's point distribution is described, with a total of 365 points noted, reflecting the number of days in a year. The significance of this mapping relates to traditional Chinese medicine's understanding of Qi flow and energy balance within the human body. The text also includes details on key points associated with specific organ systems.