CCC 118 A medieval couplet summarizes the significance of the four senses:
The Letter speaks of deeds; Allegory to faith;
The Moral how to act; Anagogy our destiny.1
1 Lettera gesta docet, quid credas allegoria, moralis quid agas, quo tendas anagogia. Augustine of Dacia, Rotulus pugillaris, 1: ed. A. Walz: Angelicum 6 (1929) 256.