Yoga therapy is difficult to define, in part because of the breadth and depth of the tradition itself, and because, like Yoga, the discipline can be approached in so many different ways. Nonetheless, for Yoga therapy to be better understood and accepted, it is necessary to have a reasonable and pragmatic definition understandable to those without experience with Yoga, yet still acceptable to those steeped in the practice and philosophy. Yoga therapy, derived from the Yoga tradition of Patanjali and the Ayurvedic system of health care refers to the adaptation and application of Yoga techniques and practices to help individuals facing health challenges at any level manage their condition, reduce symptoms, restore balance, increase vitality, and improve attitude.