It is considered an inverted posture, although we can also consider it a cervical flexion posture. Usually within a craft you will reach halasana or stance of the plow after saravangasana or candle posture. If you want to know how to build it... Follow me! - First, lie on your back with your legs and feet together. The arms are stretched to the sides of the body and the palms against the ground. Make sure your cervicals are well stretched, your chin tucked in and your jaw relaxed. - As you exhale, force your hips to raise your legs and form a right angle with your trunk toward the sky. - You inhale again, and at the same time as you exhale, raise your hips so that your knees pass in front of your face and your toes touch the ground behind your head. Help yourself by pressing your hands against the ground. - During the static phase of the posture, keep your arms stretched out and your palms flat on the ground. The legs remain very stretched behind the head so that the trunk forms a right angle with the head and the collarbones and chin touch - To get out of halasana or plow posture, use the force of the waist to descend vertebra by vertebra while exhaling. Pass your legs stretched out in front of your face, until they reach the ground.