Regulating the Body by Sitting
To regulate the body by sitting, one should observe the Vairocana Seven-Points of Sitting 毘盧遮那七支坐法. This refers to the seven rules of correct sitting posture. Each of these criteria has been used unchanged since ancient days.
Point One: The Legs
Sit on the floor with legs crossed either in the Full Lotus or Half Lotus position. To make the Full Lotus, put the right foot on the left thigh, then put the left foot crossed over the right leg onto the right thigh. To reverse the direction of the feet is also acceptable.
To take the Half Lotus position requires that one foot be crossed over onto the thigh of the other. The other foot will be placed underneath the raised leg.
The Full or Half Lotus are the correct tso-ch'an postures according to the seven-point method. However, we will describe some alternative postures since for various reasons, people may not always be able to sit in the Full or Half Lotus.
A position, called the Burmese position, is similar to the Half Lotus, except that one foot is crossed over onto the calf, rather than the thigh, of the other leg. Another position consists in kneeling. In this position, kneel with the legs together. The upper part of the body can be erect from knee to head, or the buttocks can be resting on the heels.