Guarding White (xia bai), Lung 4, 39 x42, hand-dyed fabric, embellished with paint. The character 'xia' means 'to protect.' White is the color associated with the Metal element, and often represents the Lung and its emotional imbalance of melancholy. The point conveys a sense of protecting the Breath from a state of depression. This point is located five inches distal to the elbow.