Yoga mainly refers to a series of methods of self-cultivation and heart-nourishing, including body posture adjustment, breath adjustment, mind adjustment and so on. In order to achieve the unity of body and mind, this originated in ancient India. The practice method of yoga, that is, the "eight-branch method", includes keeping precepts, respecting actions and postures. This needs to be done in a yoga studio and yoga balls and other training equipment are used. Yoga postures include leaning posture, bending posture and so on.