釋禪波羅蜜次第法門 2.119

2.119

後入禪時，須善安身得所。初至繩床，即前安坐處，每令安隱，久久無妨。次當正脚，若半跏坐，以左脚置右髀上，牽來近身，令左脚指與右髀齊，右脚指與左髀齊。若欲全跏，即上下右脚䟤置左脚上。次解寬衣帶周正，不令坐時脫落。次當安手，以左掌置右手上，重累手相對，頓置左脚上，牽近身，當心而安，正身，先當挺動其身，并諸支節，作七八反，如自按摩法，勿令手足差異。竟即正身端直，令脊相對，勿曲勿聳。

Afterward, when entering dhyāna, one must properly settle the body in its place. First, arriving at the corded chair, namely the seat prepared earlier, one should make it consistently secure and comfortable, so that sitting for a long time presents no hindrance. Next, one should adjust the feet: if sitting in the half-lotus posture, place the left foot upon the right thigh, pulling it close to the body, making the left toes even with the right thigh and the right toes even with the left thigh. If one wishes to sit in the full lotus, then raise the right foot and place it over the left foot. Next, loosen and broaden the belt and robes so that they are neat and proper, not allowing them to slip off while sitting. Next, one should position the hands: place the left palm upon the right hand, resting them flat one upon the other, set them together upon the left foot, draw them close to the body, and settle them at the level of the heart. To straighten the body, one should first stretch and move the torso and all the limbs and joints, doing so seven or eight times like a method of self-massage, without letting the hands and feet become misaligned. Having finished, straighten the body upright, aligning the spine, neither bent nor rigid.