God is the friend of silence. See how nature -- trees, flowers, grass -- grow in silence; see the stars, the moon, the sun, how they move in silence... The more we receive in silent prayer, the more we can give in our active life. We need silence to be able to touch souls. The essential thing is not what we say, but what God says to us and through us. All our words will be useless unless they come from within.
The all-important aim in meditation is to allow God's mysterious and silent presence within us to become more and more not only a reality, but the reality which gives meaning, shape and purpose to everything we do, to everything we are.