Those who are highly evolved, maintain an undiscriminating perception. Seeing everything, labeling nothing, they maintain their awareness of the Great Oneness. Thus they are supported by it.
We join spokes together in a wheel, but it is the center hole that makes the wagon move. We shape clay into a pot, but it is the emptiness inside that holds whatever we want. We hammer wood for a house, but it is the inner space that makes it livable. We work with being, but non-being is what we use.
Without going outside, you may know the whole world, without looking through the window, you may see the ways of heaven. The farther you go, the less you know. Thus the sage knows without traveling; he sees without looking; he works without doing.
Once upon a time a man whose ax was missing suspected his neighbor's son. The boy walked like a thief, looked like a thief and spoke like a thief. But the man found his ax while digging in the valley, and the next time he saw his neighbor's son, the boy walked, looked and spoke like any other child.