According to Osho, asanas need not be practiced deliberately; when you relax and let go, the body spontaneously takes the postures and mudras it needs. These organic, arising-asanas are truly beneficial because they come from inner intelligence; forced, imitative forms are secondary. Through meditative release, the right postures appear by themselves, doing the inner work without willful effort.
Don’t force yoga poses; relax, and your body will naturally move into the shapes that help you.