Catechism of the Catholic Church §1341 — excerpt
The command of Jesus to repeat his actions and words "until he comes" does not only ask us to remember Jesus and what he did.
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.