In the beginning it can be difficult to raise your body (until the chest is close to the chin) and keep it straight. But as in all the asanas it comes with the time. There how Swami Sivananda describe the technics of sarvangasana:
"Spread a blanket on
the floor and lie on the back quite flat. Slowly raise the legs, hips
and trunk. Support the back with the two hands and rest the elbows on
the ground. Press the chin against the chest. Remain in the Asana for
5 seconds and slowly bring the legs to the ground. Gradually you can
increase the period to 20 minutes. This Asana gives wonderful
benefits. It keeps the spine elastic and helps you to maintain
Brahmacharya. Elasticity of spine means everlasting youth. After
performing this Asana, do Matsyasana. You can derive the maximum
benefit of Sarvangasana"*
There are the most important elements in this position:
1. Keep straight the knees. Better to raise the hips less than bend the knees.
2. Relax the feet but keep them together.
3. Close your eyes. Concentrate on your breath
4. If you feel the tiredness bend the knees and put them for the moment on your forehead.
5. If you can't raise the hips ask your teacher to help you.
Hari Om Tat Sat
*"Easy steps to Yoga" Swami Sivananda
The source of the photo www.vishnuyoga.org
