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.
Entering into silence is like stepping into cool clear water. The dust and debris are quietly washed away, and we are purified of our triviality. This cleansing takes place whether we are conscious of it or not: the very choice of silence, of desiring to be still, washes away the day's grime.