Catechism of the Catholic Church §1073 — excerpt
The liturgy is also a participation in Christ's own prayer addressed to the Father in the Holy Spirit. In the liturgy, all Christian prayer finds its source and goal.
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.