With deep and quiet breathing, vitality will improve, which will influence the brain and help the mind to grow pure and stable and fit for meditation. Without vitality, little can be done, hence the importance of its protection and increase. Posture and breathing are a part of yoga, for the body must be healthy and well under control, but too much concentration on the body defeats its own purpose, for it is the mind that is primary in the beginning. When the mind has been put to rest and disturbs no longer the inner space (chidakash), the body acquires a new meaning and its transformation becomes both necessary and possible.