CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 2702–2706

2702 The need to involve the senses in interior prayer corresponds to a requirement of our human nature. We are body and spirit, and we experience the need to translate our feelings externally. We must pray with our whole being to give all power possible to our supplication.
2703 This need also corresponds to a divine requirement. God seeks worshippers in Spirit and in Truth, and consequently living prayer that rises from the depths of the soul. He also wants the external expression that associates the body with interior prayer, for it renders him that perfect homage which is his due.
2704 Because it is external and so thoroughly human, vocal prayer is the form of prayer most readily accessible to groups. Even interior prayer, however, cannot neglect vocal prayer. Prayer is internalized to the extent that we become aware of him "to whom we speak;" Thus vocal prayer becomes an initial form of contemplative prayer.
2705 Meditation is above all a quest. The mind seeks to understand the why and how of the Christian life, in order to adhere and respond to what the Lord is asking. The required attentiveness is difficult to sustain. We are usually helped by books, and Christians do not want for them: the Sacred Scriptures, particularly the Gospels, holy icons, liturgical texts of the day or season, writings of the spiritual fathers, works of spirituality, the great book of creation, and that of history the page on which the "today" of God is written.
2706 To meditate on what we read helps us to make it our own by confronting it with ourselves. Here, another book is opened: the book of life. We pass from thoughts to reality. To the extent that we are humble and faithful, we discover in meditation the movements that stir the heart and we are able to discern them. It is a question of acting truthfully in order to come into the light: "Lord, what do you want me to do?"