A patient came in with chronic pain in his left arm and shoulder for over 3 years which he rated it as 8/10 pain. At times the pain was so severe he was not able to make a fist. In the photograph, he is moving his right arm while watching a mirror so the brain thinks he is moving his left arm without pain. After a few minutes his pain dropped down to a 2/10. It is so fun to learn new things and see patients improve.