Devotion to the Sacred Heart of Our Lord Jesus Christ

Devotion to the Sacred Heart of Our Lord Jesus Christ is a classic Catholic devotional treatise by Fr. Jean Croiset, S.J. (1656-1738), a French Jesuit priest. BackgroundCroiset was a spiritual director connected to St. Margaret Mary Alacoque, the French Visitation nun who reported private revelations from Christ concerning devotion to His Sacred Heart in the late 17th century. Croiset was closely associated with St. Claude La Colombière, her confessor, and became one of the principal promoters of the devotion.First published in 1691 (often under the title La Dévotion au Sacré-Cœur de Jésus), it was one of the earliest and most influential works to systematize and spread this devotion, which had previously existed mostly through private revelation and informal practice. The book:Explains the theological basis for venerating the Heart of Jesus as a symbol of His love for humanityLays out practices such as the Nine First Fridays devotion (receiving Communion on nine consecutive first Fridays of the month) and consecration to the Sacred HeartIncludes prayers, meditations, and instructions for those wishing to practice the devotionPlayed a major role in popularizing the Feast of the Sacred Heart, later formally established by the ChurchSignificanceThe book was influential enough that it drew attention from Rome; parts of it faced scrutiny during a period when the broader devotion was still being evaluated by Church authorities, though the devotion itself was eventually approved and flourished, especially after canonization efforts for Margaret Mary Alacoque (canonized 1920).