SIRASANA YOGA AASANATo achieve this asana the elbows and hands should be making an equilateral triangle on the ground, and one should keep the elbows directly underneath the shoulders and use equal pressure on each elbow with slight pressure on the head and neck throughout the entire asana. Keep the palms upturned, so that you can place the back of your head gently inside the cup of your hands. Determining the point of contact on the top of the head is skill that is developed with time and practice. Ideally, try to identify the spot on the head that is two to three finger-widths back of the hairline. This helps to maintain an appropriate amount of natural curvature (lordosis) in the cervical spine. (DO NOT TURN THE HEAD while inverted or inverting).
From this position, walk the feet back toward the face, stacking the hips over the shoulders. As the hips come over the shoulders, press down through the elbows Slowly, bring the hips back, allowing the pelvis to be directly over the shoulders. Keep walking the feet and pelvis back until there is no weight in the feet. Slowly, bend one knee and then the other so that both knees are pulled into the chest. Hold here, and experiment with the position of the pelvis, until a state of balance is felt. This state of balance becomes obvious when the yogi senses equal pressure on both elbows and gentle pressure on the top of the head.
It is possible to do this with your back near to a wall but be sure to keep enough distance from the wall to allow the pelvis to stack correctly over the shoulders.
Once this bent-knee headstand position feels settled, slowly inhale the knees up, while keeping them bent, and keep the heels tucked in toward the hamstrings
as close as possible. This adds another component of challenge to the balance and control of the asana.
Take a deep inhale, and 'breathe' the heels up, coming into the full expression of the asana. The legs are Active when fully extended. This means gently holding the legs together so that the feet touch. Use subtle corrections in the asana to maintain balance.
It is impossible to intellectualize a headstand. Sirsasana is about motor skills and spatial awareness. As with all asanas, the breathing guides the movement. Use the inhale to create lift, and use the exhale to release fear. When we find our balance in this asana, the amount of muscle energy required to hold the asana for a few minutes decreases dramatically.