Prayer pose helps to achieve balance through control of the voluntary muscles; and offers, through both mental and physical balance, the best normal posture.
Stand as tall as possible, without standing on your toes. Keeping your heels together, place all your weight on the balls of your feet. Stand with your head tall and chest up, shoulders slightly back. The abdominal muscles should be relaxed, but not drawn in, fuller just below the ribs, and the pelvis should be tilted forward slightly. Keep your knees straight but not stiff, legs together, touching at the knees. Place your hands together over the sternum. Relax your mind, fixing your gaze on some object before you.
Keep the chest full, the diaphragm high, and the abdomen relaxed. The digestive organs are held in proper place, while the pelvic organs are relaxed. There is a partial relaxation of the major muscles, and a general relief of tension. Release the arms down to the sides, and this is an ideal standing posture. Maintain this posture for a minute, breathing normally. Relax your mind, and observe silence. Turn slowly to either side, parallel to a wall, and take note of your sway. Swaying must be overcome.
Practice in front of a mirror, where you can take note of your swaying. Keep your eyes half closed, concentrating on your body above the waist. Stand as still as a statue, and as soon, as you have a tendency to sway. Check it by your powerful intent. After a few weeks, try to keep this motionless posture for two to three minutes, breathing normally. This posture is best practiced in the morning, and should be followed daily until complete control is achieved.