No masks, especially the female, have a quality unique in the history of theater: they are capable of more than one expression. No masks were carved in such a way that the play of light, which could be changed by the tilt of the actor's head, brought out different expressions. It was a brilliant idea, completely in keeping with the Zen concept of suggestiveness. No companies today treasure their ancient masks, which frequently have been handed down within the troupe for centuries, and certain old masks are as famous as the actors who use them. For reasons lost to history, the masks are somewhat smaller than the human face, with the unhappy result that a heavy actor's jowls are visible around the sides and bottom. They also cup over the face, muffling to some extent the actor's delivery. The guttural No songs, which are delivered from deep in the chest and sound like a curious form of tenor gargling, are rendered even more unintelligible by the mask. This specialized No diction, which entered the form after it had passed from popular entertainment to courtly art, is extremely difficult to understand; today even cognoscenti resort to libretti to follow the poetry. The slow-motion movement around the stage, which goes by the name of "dance" in the No, is one of its more enigmatic aspects for Western viewers. As R. H. Blyth has described it, "the stillness is not immobility but is a perfect balance of opposed forces."1 Such movements as do transpire are subtle, reserved, and suggestive. They are to Western ballet what the guarded strokes of a _haboku _ink landscape are to an eighteenth-century oil canvas. They are, in fact, a perfect distillation of human movement, extracting all that is significant--much as a precious metal is taken from the impure earth. The feeling is formal, pure, and intense. As described in a volume by William Theodore de Bary: _When a No actor slowly raises his hand in a play, it corresponds not only to the text he is performing, but must also suggest something behind the mere representation, something eternal--in T. S. Eliot's words, a "moment in and out of time." The gesture of an actor is beautiful in itself, as a piece of music is beautiful, but at the same time it is the gateway to something else, the hand that points to a region as profound and remote as the viewer's powers of reception will permit. It is a symbol, not of any one thing, but of an eternal region, of an eternal silence.2 _