Arenoso: Zen #fmsphotoaday #fms_zen #fmspad #julio #july #2017 In theory moving these balls in your hand helps you, among other things, to reach a zen state while meditating. It has something to do with their weight, the sound they make (well, at least these ones make a sound, a different type for each one) and exercising pressure points in your hand. They have other uses as well. For instance, mom used these (which we bought during our trip to China) as part of her rehab therapy when she had to undergo surgery in her hand (which she almost lost due to a bad reaction to a blood transfusion a few years ago, long story). If moving them around doesn't work, and due to their weight and the material they're made of, then you can try throwing them at your source of discomfort to reach that coveted state of zen.