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.
When you pray, do not pray half-heartedly. Pray with every part of your being. Let your physical body resound to your intention, your feelings and you thoughts. Let prayer manifest in your life's motives and in your aspirational body. Beyond all else, trust that your prayers will be answered as they are needed to be answered... Let your prayer carry the sound of your deepest love, for most surely Love is the cause of life and Love is its own effect... Love is universal, so part of our life's work is to become so universal in our words, thoughts, feelings and deeds that we become "the sounding box of God".