Other yoga classes (also called yang, hatha, flow, or vinyasa) focus on strengthening and stretching your muscles. Yin yoga focuses on relaxing muscles to move into deep connective tissues, your fascia, ligaments, joints, and bones. It’s slow and even meditative, offering you the time to focus on the sensations in your practice. However, this slow and still style of yoga is often what makes it challenging for people. Being still involves practice!