修習止觀坐禪法要 1.77

1.77

Entering concentration originally proceeds from the coarse to the subtle: therefore, the body being coarse, the breath being in between, and the mind being the most subtle and tranquil, harmonizing the coarse to approach the subtle and causing the mind to become tranquil is the initial expedient means for entering concentration. This is called harmonizing the three things upon first entering concentration.