The heart, a universal symbol of love and devotion, takes on a profound meaning in the Christian tradition, particularly linked to the Sacred Heart of Jesus and the Immaculate Heart of Mary. The veneration of the Sacred Heart of Jesus, which spread widely from the 17th century thanks to the revelations of Saint Margaret Mary Alacoque, celebrates Christ's infinite and merciful love for humanity, culminating in the sacrifice on the cross. The Immaculate Heart of Mary, on the other hand, venerated especially after the apparitions of Fatima, represents the purity, humility and total adherence of the Virgin to the divine will, a model of faith and maternal love. Both devotions invite contemplation of divine love and imitation of the virtues of Jesus and Mary.