CCC 2099
© Libreria Editrice Vaticana Source: vatican.va
It is right to offer sacrifice to God as a sign of adoration and gratitude, supplication and communion: "Every action done so as to cling to God in communion of holiness, and thus achieve blessedness, is a true sacrifice." St. Augustine, De civ Dei 10, 6 PL — Patrologia Latina (Migne).