Yin yoga is a slow form of yoga where the asanas (poses) are held for several minutes. It originated in China and focuses on improving the flow of qi through the body. It is quite a meditative form of yoga and aims to cultivate awareness of the inner silence. For beginners, asanas may be held from 45 seconds to two minutes; more advanced practitioners may stay in one asana for five minutes or more. The sequences of postures are meant to stimulate the channels of the subtle body known as meridians in Chinese medicine and as nadis in Hatha yoga. In Yin Yoga, we hold mostly passive poses for about two to five minutes to work into our connective tissues.