O Lord, let others ask for every kind of gift, with more and more prayers; I ask for one gift with but one prayer: "Grant me a pure heart!" How blessed are the pure of heart. By the power of their faith they see God within themselves; they see Him above and below, in all things, at all times. They become the instruments of this Divine Play, as God guides them everywhere and leads them to everything.
A pure heart and good will! The one foundation of every spiritual state! … The pure heart could well say to every soul: "Look at me carefully. It is I who generate that love which always chooses the better part. I produce that mild but effective fear which arouses such a dread of wrong-doing that it can easily be avoided. I impart that excellent understanding which reveals the greatness of God and the merit of virtue. And it is also I who causes that passionate and holy yearning which keeps the soul resolute in virtue and in expectation of God."
Yes, 0 Pure Heart, you can invite everyone to gather round you and enrich themselves with your inexhaustible treasures. There is not one single kind of spiritual practice, not one path to holiness, which does not find its source in you.
(Jean Pierre de Caussade)