The standard kneeling position is to kneel with the left leg in front and the right leg in the back. Stand with your feet shoulder-width apart while kneeling, with your arms hanging naturally at your sides and your upper body upright. Both legs should be kept at 90 degrees, that is, the thigh and calf of the left leg should be 90 degrees, and the thigh and calf of the right leg should be 90 degrees, so that is the standard kneeling position.