Most forms of yoga in the West can be classified as Hatha Yoga. Hatha simply refers to the practice of physical yoga postures, meaning your Ashtanga, vinyasa, Iyengar and Power Yoga classes are all Hatha Yoga.
The word “Hatha” can be translated two ways: as “willful” or “forceful,” or the yoga of activity, and as “sun” (ha) and “moon” (tha), the yoga of balance. Hatha practices are designed to align and calm your body, mind, and spirit in preparation for meditation.
Today, hatha is most often used to describe gentle, basic yoga classes that emphasize static postures compared to styles with more movement or flow. Expect a slower-paced stretching-focused class with some basic breathing exercises Pranayama and perhaps a seated meditation at the end. Hatha classes are a good place to work on your alignment, learn relaxation techniques, and become comfortable with doing yoga while building strength and flexibility.