The Priest's Wife...

When I was in seminary, we jokingly referred to the breviary as 'the wife'. I was bemused to learn that Don Marco finds a similar description in the Dialogue of St Catherine of Siena.

The bride they hold ought to be the breviary, and the books of Holy Scripture their children. There they should take their pleasure in sharing instruction with their neighbors and in finding a holy life for themselves.

--The Eternal Father to Saint Catherine of Siena, The Dialogue