If our ordinary, self-centered viewpoint is dominant, rocks and tree roots are undesirable. But if we change our point of view, then the very fact that there are rocks and tree roots makes the valley stream more beautiful and the sight of waves breaking upon them beyond description. When we perceive joy, anger, happiness and sorrow as enriching our lives, just as rocks and tree roots and water spray embellish nature, then we are able to accept whatever happens and live like flowing water, without clinging to anything.
For sheer adventure, exploring the inner space of the human spirit has to equal the exploration of outer space. Inner space holds a realm of existence not readily apparent when we are in the grip of the strident external world. A powerful launching vehicle for the discovery of the realm within is silence. It is in the vessel of silence that inner transformation can occur.