The Taoists claimed that the comedy of life could be made more interesting if everyone would preserve the unities. To keep the proportion of things and give place to others without losing one’s own position was the secret of success in the mundane drama. We must know the whole play in order to properly act our parts; the conception of totality must never be lost in that of the individual. This Laotse illustrates by his favourite metaphor of the Vacuum. He claimed that only in vacuum lay the truly essential. The reality of a room, for instance, was to be found in the vacant space enclosed by the roof and the walls, not in the roof and walls themselves. The usefulness of a water pitcher dwelt in the emptiness where water might be put, not in the form of the pitcher or the material of which it was made. Vacuum is all potent because all containing. In vacuum alone motion becomes possible. One who could make of himself a vacuum into which others might freely enter would become master of all situations. The whole can always dominate the part.
– Okakura Kakuzo, The Book of Tea