Baba Hari Dass was an Indian yoga master, silent monk, temple builder, and commentator of Indian scriptural traditions of dharma and moksha. He was classically trained in the Ashtanga of Patanjali, as well as Kriya yoga, Ayurveda, Samkhya, Tantra, Vedanta, and Sanskrit.

Yoga is a group of physical, mental, and spiritual practices or disciplines which originated in ancient India and aim to control (yoke) and still the mind, recognizing a detached witness-consciousness untouched by the mind (Chitta) and mundane suffering (Duḥkha). There is a wide variety of schools of yoga, practices, and goals in Hinduism, Buddhism, and Jainism, and traditional and modern yoga is practiced worldwide.