It is said that grace is given only to a few chosen persons and that no matter how hard a man works on himself, unless he is fortunate enough to receive it, the illumination he wants will evade him. This teaching sounds depressing because it seems to put us at the mercy of caprice, favouritism, or arbitrariness. But the mystery of grace is not so mysterious as that. We are all children of God: there are no special favourites. Grace can come to all who seek it, but they must first make themselves ready to receive it. If they thirst, hunger, and seek with their whole heart and body, and if in addition they make the gestures of penance, self-denial, and purification both to prove their sincerity and to help achieve this readiness, it is inconceivable that the grace will not come to them in the end.
-- Notebooks Category 18: The Reverential Life > Chapter 5 : Grace > # 178