IMMACULATE HEART OF MARY
The feast of the Immaculate Heart of Mary takes place on the day following the Solemnity of the Most Sacred Heart of Jesus. This devotion honors Mary's perfect purity of heart in virtue of her Immaculate Conception, and the perfect union of her heart—on fire with love for God and her spiritual children—with the heart of her Son, Jesus. In two passages in the Gospel of Luke we have reference to Mary treasuring and pondering in her heart the sacred events of Jesus' life, which became the foundation of the pious devotion to the Heart of Mary in the Church. In 1944, after consecrating the world to the Immaculate Heart of Mary, Pope Pius XII extended this feast to the universal Church.