This Chapter from the Yellow Emperor's Classic of Internal Medicine details ancient Chinese medical principles, focusing on pulse diagnosis and acupuncture. It explains the concept of "End and Beginning," emphasizing the balance of yin and yang within the body's meridians. The text provides diagnostic methods for assessing pulse imbalances, outlining treatment strategies involving needling techniques (tonification and drainage) to restore harmony. Seasonal influences and specific conditions are considered in treatment approaches, with cautions provided to prevent harm. Finally, it describes terminal signs indicating the severity of various conditions.