Patanjali's Yoga Sutras by Swami Vivekananda is a classic interpretation of the ancient Yoga Sutras of Patanjali, presenting the foundations of Raja Yoga in a clear and accessible manner. Through insightful commentary, Vivekananda explains the philosophy and practice of yoga, emphasizing the discipline of the mind, meditation, self-control, and the pursuit of self-realization. The book explores key concepts such as the Eight Limbs of Yoga (Ashtanga Yoga), concentration, consciousness, karma, liberation (moksha), and the nature of the Self. Blending timeless wisdom with practical guidance, it remains an essential work for students of yoga, Indian philosophy, and spiritual practice.