I have found that the greatest degree of inner tranquility comes from the development of love and compassion. The more we care for the happiness of others, the greater is our own sense of well-being. Cultivating a close, warmhearted feeling for others automatically puts the mind at ease.
I always begin my prayer in silence, for it is in the silence of the heart that God speaks. God is the friend of silence, so we need to listen. For, it is not what we say, but what God says to us and through us that matters. Prayer feeds the soul — as blood is to the body, prayer is to the soul — and it brings us closer to God.