To be effective, the restorative poses require an attitude of receptivity and surrender. Will power plays no part in their practice.
At a first glance these poses may not look dramatic or challenging. But each pose is deeply therapeutic and helps to release tension and restore energy. These poses are powerfully nurturing, in part because they can be held for longer than most other postures, because the body is supported. They cool an agitated brain, reduce elevated blood pressure, rest the nervous system, and enable the immune and endocrine systems to function more efficiently.
Restorative yoga poses are often referred to as active relaxation. By supporting the body with various props, the student can alternately stimulate and relax the body towards balance.” Judith Lasater, PH.D, P.T.