Yoga is a whole science: hatha yoga, raja yoga, bhakti yoga, jnana yoga, kundalini yoga, kriya yoga, karma yoga. By themselves they do not represent the whole of yoga. They represent the various faculties which yoga embodies.
Therefore, is it not the right time for all yoga teachers to be well versed in every branch, in every faculty of yoga? Many times the spiritual yoga is taught to pupils but the therapeutic aspects of yoga are discouraged. How illogical is it? How can one realize the higher consciousness without cleansing the mind, emotions and body? Therefore, the preliminary base of every form of yoga is therapeutic.
The practice of bhakti yoga treats the schizophrenic tendencies of the mind. The practice of karma yoga treats suppressions and inhibitions. The practice of jnana yoga treats the wrong notions of an individual. The practices of hatha yoga treat the diseases of nadis, prana and the body. The practice of kundalini yoga and kriya yoga treat the psychic symptoms.
Every form of yoga has a therapeutic quality at the base. Not only high blood pressure and diabetes are diseases. Not only rheumatism, arthritis and lumbago are diseases. Nervous depression is also a disease. Jealousy is a disease. Anger and excitement are diseases. Dissatisfaction is a disease. Restlessness of mind is a disease.
The inability to concentrate the mind on the point on which one wants to concentrate is also a disease. Therefore, the area of therapy is not a limited area.