QUOTE : The mind & body are not separate entities. The gross form of the mind is the body & the subtle form of the body is the mind. The practice of asana integrates & harmonizes the two. Both the body & the mind harbor tensions or knots. Every mental knot has a corresponding physical, muscular knot & vice versa. The aim of asana is to release these knots. Asana release mental tensions by dealing with them on the physical level, acting somato-psychically, through the body to the mind.