The word Hatha is derived from “Ha”means sun and “tha” means moon. Hatha also means powerful or forceful. Thus forms of yoga such as Ashtanga, Vinyasa, Iyengar and power yoga can be categorized under Hatha Yoga. Hatha yoga is the combination of energizing and dynamic yoga postures (representated by the sun) with relaxing and meditative yoga postures (represented by the moon) which results in body balance. The body derives maximum benefit from this combination and clams down body, mind and spirit prepares it for meditation.