Catechism of the Catholic Church §2687 — excerpt
Many religious have consecrated their whole lives to prayer. Hermits, monks, and nuns since the time of the desert fathers have devoted their time to praising God and interceding for his people.
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.