Prayer is based on attention to the presence of the sacred in life, and to the thoughts that express our longing for relationship with that presence. And the disciplines of inner guidance are based on attention to the wisdom of the "Still, small voice within." Attention may seem at first like a very ordinary thing. But it is the cornerstone of the spiritual life. In fact, we could say that paying attention is the essence of true spirituality. When we pay attention, whatever we are doing is transformed and becomes a part of our spiritual path.
What is the relation of contemplation to action? Simply this. He who attempts to act and do things for others or for the world without deepening his own self-understanding, freedom, integrity, and capacity to love, will not have anything to give others.
~ Thomas Merton in THOMAS MERTON SPIRITUAL MASTER: ESSENTIAL WRITINGS