Catechism of the Catholic Church §1149 — excerpt
The great religions of mankind witness, often impressively, to this cosmic and symbolic meaning of religious rites. the liturgy of the Church presupposes, integrates and sanctifies elements from creation and human culture, conferring on them the dignity of signs of grace, of the new creation in Jesus Christ.
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.