On Solitude "Solitude is the place of purification and transformation, the place of the great struggle and the great encounter ... the place of our salvation." On Silence "First, silence makes us pilgrims. Secondly, silence guards the fire within. Thirdly, silence teaches us to speak." On Prayer "The prayer of the heart opens the eyes of our soul to the truth of ourselves as well as to the truth of God. The prayer of the heart challenges us to hide absolutely nothing."Nouwen, Henri J. M. is the author of 'Way of the Heart', published 2003 under ISBN 9780345463357 and ISBN 0345463358.