Catechism of the Catholic Church, Paragraph 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;”4 Thus vocal prayer becomes an initial form of contemplative prayer.
4 St. Teresa of Jesus, The Way of Perfection 26, 9 in The Collected Works of St. Teresa of Avila, translated by K. Kavanaugh, OCD, and O. Rodriguez, OCD (Washington DC: Institute of Carmelite Studies, 1980), II, 136.
“A catechism should faithfully and systematically present the teaching of Sacred Scripture, the living Tradition of the Church and the authentic Magisterium, as well as the spiritual heritage of the Fathers and the Church’s saints, to allow for a better knowledge of the Christian mystery and for enlivening the faith of the People of God. It should take into account the doctrinal statements which down the centuries the Holy Spirit has intimated to his Church. It should also help illumine with the light of faith the new situations and problems which had not yet emerged in the past.” (Apostolic Constitution Fidei Depositum on the Publication of the Catechism of the Catholic Church Prepared following the Second Vatican Ecumenical Council, 11 October 1992)