Hatha Yoga is one of the most influential traditions of Yoga that aims at achieving harmony between the body, mind, and vital energy as a preparation for higher states of consciousness. The term "Hatha" is commonly interpreted as the union of "Ha" (sun) and "Tha" (moon), symbolizing the balance of opposing energies within the human body. Classical Hatha Yoga is not merely a system of physical exercises but a comprehensive spiritual discipline designed to purify the body and mind, awaken latent energy, and ultimately lead the practitioner toward self-realization and liberation. The philosophy of Hatha Yoga is rooted in the broader traditions of Hindu Yoga, Tantra, and Nath Sampradaya. It accepts that the human body is a sacred instrument for spiritual evolution rather than an obstacle. Unlike approaches that emphasize renunciation of the body, Hatha Yoga considers bodily purification and mastery essential for attaining higher yogic states. The ultimate goal is the realization of the unity of the individual self with the universal consciousness through disciplined practice. The body, breath, mind, and subtle energy channels are viewed as interconnected, and purification of one influences the others. Several classical texts provide the philosophical foundation and practical guidance for Hatha Yoga. The *Hatha Yoga Pradipika*, composed by Swatmarama, is regarded as the most authoritative manual. It synthesizes earlier yogic traditions and presents Hatha Yoga as a preparatory stage leading to Raja Yoga or meditation. The *Gheranda Samhita* presents a sevenfold system of Yoga emphasizing purification, strengthening, steadiness, patience, lightness, meditation, and realization. The *Shiva Samhita* combines yogic philosophy with