--> The Sivananda Yoga Vedanta Centres is a global organisation dedicated to teaching classical yoga and Vedanta to promote physical, mental, and spiritual health. With over 25 centres worldwide, they offer a range of programs, including teacher training courses, yoga vacations, and continuing education programs. Their teachings are based on the five principles of yoga, synthesised by Swami Vishnudevananda, and are designed to be easily incorporated into daily life. The organisation also runs on the principles of selfless service, or karma yoga, and supports various charitable projects and activities around the world.