The Yoga Sutras of Patanjali is a foundational text of classical yoga philosophy compiled around 400-500 CE. This concise collection of 196 sutras (aphorisms) systematically outlines the science of yoga and the path to self-realization. Organized into four chapters (padas) the text covers Samadhi (meditation and enlightenment) Sadhana (practice) Vibhuti (spiritual powers) and Kaivalya (liberation). The Sutras introduce the eight-limbed path (Ashtanga Yoga): ethical guidelines (yamas and niyamas) physical postures (asana) breath control (pranayama) sensory withdrawal (pratyahara) concentration (dharana) meditation (dhyana) and spiritual absorption (samadhi). Patanjali defines yoga as “chitta vritti nirodha” or the cessation of the fluctuations of the mind explaining how mental modifications create suffering and how yogic practices lead to their quieting. The text also expounds on obstacles to practice the concept of karma and the nature of consciousness. Despite its brevity the Yoga Sutras remain profoundly influential providing philosophical foundation for numerous yoga traditions worldwide.