"It might be of value here if we dealt with the various "yogas" so as to give to the student a clear concept as to their distinctions and thus cultivate his discrimination. The principal yogas are three in number, the various other so-called "yogas" finding their place in one of these three groups: 1. Raja Yoga...the yoga of the mind or will, 2. Bhakti Yoga... the yoga of the heart or the devotee, 3. Karma Yoga.... the yoga of action."