Catechism of the Catholic Church §2624 — excerpt
In the first community of Jerusalem, believers "devoted themselves to the apostles' teaching and fellowship, to the breaking of bread, and the prayers." This sequence is characteristic of the Church's prayer: founded on the apostolic faith; authenticated by charity; nourished in the Eucharist.
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.