The highest level of prayer is not a prayer FOR anything. It is a deep and profound silence, in which we allow ourselves to be still and know God. In that silence, we are changed. We are calmed. We are illumined. Prayer is meant to dissolve the worldly focus, to dissolve our sense of a separate self, to help us detach from the noisy world order.
Prayer is like pouring hot water on an ice cube, melting the cold and encrusted thought forms that still surround our hearts.
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.