Restorative yoga is active relaxation, it is done with the use of props in order to allow the body to completely release tensions and relax; this will facilitate the relaxation of the mind.
During relaxation, the parasympathetic nervous system (PSNS), is working at its best. The PSNS is responsible for all activities that occur when the body is at rest as digestion, fertility, immune system, cellular regeneration etc. Its action is described as being complementary to that of the sympathetic nervous system (SNS), which is responsible for stimulating activities associated with the fight-or-flight response.
In our daily life we are more often on the sympathetic modality than in the parasympathetic. All the stimuli that we receive everyday and the stress we are constantly exposed to, constantly activate the sympathetic nervous system. Therefore a regular practice of restorative yoga becomes more and more necessary in order to allow the body to regenerate and also to allow the mental and emotional layer to relax and open.
Restorative Yoga is about opening the body to receive and be receptive to what is happening without reacting.