Catechism of the Catholic Church §118 — excerpt
A medieval couplet summarizes the significance of the four senses:
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.
Also cites: Lettera gesta docet, quid credas allegoria, moralis quid agas, quo tendas anagogia