摩訶止觀 8.77

8.77

次、數息不調，多令人痁癖，筋脈攣縮。若發八觸，用息違觸成病。八觸者：心與四大合則有四正體觸，復有四依觸，合成八觸。重如沈下，輕如上升；冷如氷室；熱如火舍；澁如挽逆；滑如磨脂；軟如無骨；麁如糠肌。此八觸四上四下。入息順地大而重，出息順風大而輕；又入息順水大而冷，出息順火大而熱；又入息順地大而澁，出息順風大而滑；又入息順水大而軟，出息順火大而麁。若發重觸而數出息，與觸相違，即便成病，餘例可知。

Next, maladjustment in counting breaths often causes malaria-like knots and cramping of muscles and vessels. If the eight tactile sensations arise, using breath contrary to the sensations causes illness. As for the eight tactile sensations: when the mind unites with the four great elements, there are four primary tactile sensations, and further four secondary tactile sensations, making eight tactile sensations in all. Heaviness is like sinking down; lightness is like rising up; coldness is like an icehouse; heat is like a burning room; roughness is like dragging against the grain; smoothness is like rubbing grease; softness is like being without bones; coarseness is like bran on the skin. These eight tactile sensations are four upward and four downward. Inhalation accords with the earth element and is heavy; exhalation accords with the wind element and is light. Further, inhalation accords with the water element and is cold; exhalation accords with the fire element and is hot. Further, inhalation accords with the earth element and is rough; exhalation accords with the wind element and is smooth. Further, inhalation accords with the water element and is soft; exhalation accords with the fire element and is coarse. If the heavy sensation arises and one counts exhalations, it conflicts with the sensation and immediately becomes an illness; the other cases can be understood by analogy.