The fourth is consolidating. Qi can prevent blood from extravasation and regulate the secretion and excretion sweat, urine, saliva, gastric juice, intestinal juice and sperm in order to avoid unnecessary loss.

固摄作用。气可以防止血外渗， 、、唾、胃、肠和精子的分泌和排泄， 以避免不必要的损失。