Catechism of the Catholic Church §2689 — excerpt
Prayer groups, indeed "schools of prayer," are today one of the signs and one of the driving forces of renewal of prayer in the Church, provided they drink from authentic wellsprings of Christian prayer.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.