'Vasistha' in Sanskrit means 'the best'. While performing the pose most of the body weight is balanced on one hand and hence the asana is one of the powerful poses.
Similar to Keezhadi excavations which bring to light the rich past of the Thamizh civilization, Thirumoolar's Thirumanthiram draws our attention to the unbelievably rich knowledge possessed by ancient Thamizh civilization in the field of medicine. It will be only right to say that Thirumoolar would have been the world's first anatomical scientist.