Yin Yoga uses time and breath to create change. The body is placed into position to create a supported asana and the position is held for an extended period of time. It should be practiced with muscles relaxed.
Yin Yoga is slow and subtle. The intention is to let the body move into postures slowly and focus on the stress and release. It targets fascia and connective tissues of the body, moving beyond muscle stretching.
Yin Yoga is a wonderful partner to Hot Yoga (Yang Yoga). Yin tissues are plastic and require long held stresses. Yang tissues are elastic and like to be repetitively stressed and moved. While Yang exercises typically result in muscle fatigue, Yin exercises will leave you feeling rejuvenated.