釋禪波羅蜜次第法門 2.118

2.118

First, harmonizing the three matters upon entering dhyāna: when the practitioner wishes to enter samādhi, regarding the propriety of harmonizing the body, while outside of concentration, in walking, standing, moving, and stopping, in every movement, rest, and activity, all must be measured and deliberate. If what one does is coarse and rough, the breath will become coarse accordingly. Because the breath is coarse, the mind will be scattered and difficult to collect. In addition, when sitting, one will be agitated and confused, with the mind lacking tranquility. Therefore, even though outside of concentration, one must mindfully take preparatory expedients in advance.