There are twelve points of regulation that are traditionally listed as important to a successful meditation practice in the Zen tradition. Here they are:
1) Regulate food, water, and sleep.
2) A quiet room and loose clothing.
3) A thick cushion.
4) Adopt an awe-inspiring deportment that makes everything ‘equal’.
5) Assume the full-lotus – right-foot over left thigh, left-foot over right-thigh.
6) Assume the half-lotus – with the left-leg laid over the right-leg.
7) Left-hand should be placed on the right-hand with thumbs touching.
8) Adjust the posture forward and backward and settle whilst regulating the breath.
9) Align the spine with the shoulder and pelvic girdles.
10) An aligned posture allows the breath to be full and deep.
11) The ears should be aligned with the shoulders; the nose with the navel. The tongue should touch the palate and the lips and teeth should be closed.
12) Eyes should remain slightly open to avoid drowsiness.