We must avoid the error of thinking we can reduce the apostolate to the performance of a few pious practices. You and I are Christians but at the same time, and without any break in continuity, we are citizens and workers with clear obligations, which we have to fulfil in an exemplary manner if we really want to become saints. Jesus himself is urging us: 'You are the light of the world. A city set on a mountain cannot be hidden. Neither do men light a lamp and put it under a measure, but upon the lampstand, so as to give light to all in the house. Even so, let your light shine before men, in order that they may see your good works and give glory to your Father in heaven.'

Professional work, whatever it is, becomes a lamp to enlighten your colleagues and friends. That is why I usually tell those who become members of Opus Dei, and the same applies to all of you now listening to me: 'What use is it telling me that so and so is a good son of mine — a good Christian — but a bad shoemaker?' If he doesn't try to learn his trade well, or doesn't give his full attention to it, he won't be able to sanctify it or offer it to Our Lord. The sanctification of ordinary work is, as it were, the hinge of true spirituality for people who, like us, have decided to come close to God while being at the same time fully involved in temporal affairs.