Oh, pain is fascinating and confusing and kind of messed up! Fascinating because it busts through past the opaque almost-oblivion part of your sensations, through the middle muddle where you can usually only get glimpses of awareness and straight into your consciousness—like a sharp knife through butter. Pain is confusing because it isn't a particular signal that sends 'pain' messages. It is an emergent property of many sensorial streams—pressure, shear, temperature, chemical irritation, tissue stretch and myriad others. A key input is nociception. This was often thought of as the pain sensor, but it isn’t exactly. It is the signal for when you are threshold-busting. But the conclusion 'ouch' mixes all the signals from your nevrous system, lymphatic system, etc etc but it is ALSO composed of attitudes, beliefs and your understanding of your context inside and out. 'Belief' could be belief in healing or fear that someone powerful stuck a pin in an effigy of you. Belief that you are not worthy or your gender is stronger. Belief that you are too old… Assessment of your current stress context inside and out. All these contribute to the emergent property of ‘ouch.’ And, finally, pain is messed up because it doesn't undo its signal as easily as it registers/creates it. It is as though once pain emerges, once your consciousness grabs it, it isn't so good at ungrabbing it, even after the crisis is passed. Your consciousness gets its fingers stuck in the pain jar, and the harder you try to pull them out, the more the jar comes with you. And that is how the story of pain as an emergent property becomes the story of habits gone stale. Feldenkrais can do something about that.