Sarvangasana,the queen or mother of all asanas

Sarvangasana is an inverted Hatha Yoga asana commonly known in English as Shoulderstand.
Many variations of Shoulderstand exist, the likely most common to be taught is Supported Shoulderstand (Salamba Sarvangasana).
Sarvangasana is nicknamed "queen" or "mother" of all the yoga poses.

The name in the case of Salamba Sarvangasana (Supported Shoulderstand) comes from the Sanskrit words Salamba meaning "supported", Sarva  meaning "all" or "every", Anga meaning "limbs" or "bodyparts", and Asana  meaning "posture" or "seat", thus Salamba Sarvangasana  literally translats to "supported-all-limbs-pose".

Sarvangasana is known to activate most of the important glands, thus, improving their function. The traditional books on Yoga proclaim the importance of this asana. Sarvangasana is an especially important and beneficial pose. Its name in Sanskrit literally means "posture of the complete body."

Sarvangasana

Practicing and how to do Sarvangasana?

• One should start exhaling and inhaling, raising both the legs upward and stop when they make angle of 90 degree with the floor and then attain the Uttanpadasana posture.
• Exhaling raise the waist and push the legs backward over the head.   Then the person should support the waist with both the hands, then using the hands get the legs, waist and back in one straight line and stabilize them in this position, then one should stretch the toes towards sky and keep the sight on the toes.
• Normal breathing should be continued.      

 Effects or Benefits of Sarvangasana :

There are several benefits of Sarvangasana. This asana helps to improve the blood circulation as impure blood easily reaches the heart. Inverted yoga asanas also direct oxygen to the upper lung, ensuring healthier lung tissue. To some extent one can get the benefits of Shirshasana (up side down) in this posture as well. The thyroid gland is located in the neck. Over a period of time due to lack of proper circulation the gland starts to depreciate. Sarvangasana pushes healthy, oxygen-rich blood directly into the neck, strengthening the thyroid glands. This asana controls and cures the diseases related to genital organs and constipation; and also helps to cure varicose veins and hemorrhoids.