Working to music (such as Mozart’s “Symphony No. 40 in G Minor”) and concentrating on “listening” will teach you much about possibilities of rhythm in pen touch and movement. And by listening rather than watching the pen fearfully, you may find that the tactile and kinetic images of the letters are safely in your hand — and you can stop worrying. Writing with the eyes closed is also a good test of what your hand and wrist know and whether you can trust them.
A master writer is aware of what his hand is doing, but he can think of the meaning of the text instead of shepherding his fingers.
