translation.en: Imagine what your life would be like if I were to stroke it with this feather, but your brain was telling you that this is what you are feeling -- and that is the experience of my patients with chronic pain.
translation.zh: 想象一下你的生活将会怎样 如果我是用这根羽毛去挠你， 结果你的大脑却告诉你 你现在的感觉是灼伤-- 这就是我的患者对慢性疼痛的感受。