It is a practice that focuses on physical postures and breathing exercises. Ha-Tha means Sun and Moon. When written together, it means "strong" and symbolizes what a great power the cleansing of the body requires. It was initiated by Swatmara in India in the 15th century. Hatha yoga is thought to be the laces and pranayama (breathing techniques) to prepare and strengthen the body for long meditation sessions.
In the western world, physical exercises and stress-reducing breathing exercises, commonly known as yoga, have emerged from Hatha yoga and are used for spiritual and physical health.