摩訶止觀 8.96

8.96

又口吹去冷，鼻徐內溫，安詳而入，勿令衝突。於一上坐，七過為之，然後安心；安心少時，更復用氣，此是用治意。若平常吐穢，一兩即足。口呼去熱，鼻內清涼。口𡁱去痛除風，鼻內安和。口呵去煩、下氣、散痰者，想胸痰上分隨口出，下分隨息溜，故不須鼻中補也。噓去滿脹，鼻內安鎖。𡀗去勞之，鼻內和補。細心出內，勿令過分。善能斟酌，增損得宜，非唯自能治病，亦能濟他。

Moreover, exhaling with the mouth through chui expels cold, while the nose slowly takes in warmth, entering calmly and gently without allowing any violent clash. In a single sitting, perform it seven times and then settle the mind; after settling the mind for a short while, use the vocalization again—this is the method of application. If ordinarily expelling impurities, once or twice is sufficient. Exhaling with the mouth through hu expels heat, and the nose draws in cool freshness. Exhaling with the mouth through xi dispels pain and eliminates wind, and the nose draws in peaceful harmony. When exhaling with the mouth through he to eliminate vexation, lower qì, and disperse phlegm, imagine that the upper portion of the chest phlegm exits with the mouth, and the lower portion flows down with the breath; therefore there is no need to tonify through the nose. Xu eliminates fullness and distension, while the nose takes in peaceful containment. Si eliminates fatigue, while the nose harmonizes and tonifies. Delicately exhale and inhale, not allowing any excess. If one can judiciously weigh and adjust additions and subtractions appropriately, not only can one treat one's own illnesses, but one can also rescue others.