In a cave, all outer sounds are smothered by rock and earth, but this makes the sounds of one's own heartbeat and breath audible. In the same way, contemplative stillness turns us away from everyday clamor but allows us to hear the subtle in our own lives. When listening not with the ear but with the spirit, one can perceive the subtle sound. By entering into that sound, we enter into supreme purity. That is why so many religious traditions pray, sing, or chant as a prelude to silence. They understand that the repetition and absorption of sound leads to sacredness itself. The deepest sound is silence. This may seem paradoxical only if we regard silence as an absence of life and its opposites. It is both sound and soundlessness, and it is in this confluence that the power of meditation emerges.
Contemplation is the highest expression of man's intellectual and spiritual life. It is that life itself, fully awake, fully active, fully aware, that it is alive. It is spiritual wonder. It is spontaneous awe at the sacredness of life, of being. It is gratitude for life, for awareness and for being. It is a vivid realization of the fact that life and being in us proceed from an invisible, transcendent and infinitely abundant source. Contemplation is, above all, awareness of the reality of that source.