Downward Facing Dog. If you have a dog, you can clearly see the inspiration in this pose. Learn the foundational actions of this ubiquitous pose, so you can safely extend the arms and legs and mobilize the joints without strain on the wrist and shoulders. This pose can remove fatigue after a long day, it can calm the nervous system, prepare one for inversions, forward bends or even backbends. It can traction the lumbar and provide relief from back pain.