Catechism of the Catholic Church §378 — excerpt
The sign of man's familiarity with God is that God places him in the garden. There he lives "to till it and keep it". Work is not yet a burden, but rather the collaboration of man and woman with God in perfecting the visible creation.
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.