130 In Louye, Charles de Foucauld was accustomed to visit the Blessed Sacrament with his cousin, Marie de Bondy. One day she showed him an image of the Sacred Heart. His cousin played a fundamental role in Charles’s conversion, as he himself acknowledged: “Since God has made you the first instrument of his mercies towards me, from you everything else began. Had you not converted me, brought me to Jesus and taught me little by little, letter by letter, all that is holy and good, where would I be today?” What Marie awakened in him was an intense awareness of the love of Jesus. That was the essential thing, and centred on devotion to the heart of Jesus, in which he encountered unbounded mercy: “Let us trust in the infinite mercy of the one whose heart you led me to know”.
Source: Dilexit Nos (Vatican.va)