Dr. Zang has unbelievably gifted hands. What he is doing looks to you and me like massage, but he’s worked on my body for months, and his hands are like radar. They can find spots you didn’t know were sore. The first time he taught me, he brought in a bag of millet and threw it on the floor and said, ‘When you can use your hand to crush this to dust, then you have the beginning movements. But until you learn to crush it with your finger, you are not ready.’ It takes a lot of energy and skill to use your hand to crush millet into dust. That’s the amount of force he can use, if he wants, on a single spot. He has to know many different manipulations — but more important, he has to know when and where to use them.