This Chapter is a dialogue from the Yellow Emperor's Classic of Internal Medicine, specifically Chapter 72, discussing acupuncture techniques. The Yellow Emperor and Qi Bo explore preventative acupuncture methods for various imbalances within the body, relating these to the Five Elements and celestial cycles. The discussion covers treating both ascending and descending Qi blockages, as well as addressing epidemics and spiritual imbalances through specific acupuncture points and preventative measures. Finally, it emphasizes the importance of cultivating and harmonizing the body's Qi and spirit for overall health and longevity.