This Chapter is a dialogue from the Yellow Emperor’s Classic of Internal Medicine, specifically Chapter 33, exploring various heat illnesses and their diagnoses. The Yellow Emperor, a mythical figure, questions Qi Bo, a renowned physician, about symptoms, causes, and treatments for several conditions. These conditions include Yin-Yang imbalance, wind-reversal, labor-related wind, and kidney-related wind, each explained through detailed discussions of their etiology and appropriate therapies. The dialogue highlights the importance of pulse diagnosis, and the relationship between the body's essence and pathogenic qi in determining prognosis.