Emotion, in its journey from the soul of the brain outward through the body, is expressed through the movement of muscles. In fact, it’s impossible to express an emotion without moving muscles: the muscles of the limbs, the muscles of the face, the muscles of respiration and digestion with which we speak words and wail. The human vocal apparatus – the lungs, the larynx, the mouth, etc. – gives voice to emotion, but the hands also speak the language of emotion with a vividness of their own in something akin to a voice. Rage may seize the muscles of the agitated hands, drawing the fingers into punching fists. The muscles of the hands press the palms together thoughtfully and the hands make the voice of an arrow.