# Immaculate Conception ## Catechism of the Catholic Church The dogma proclaimed in Christian Tradition and defined in 1854, that from the first moment of her conception, Mary--by the singular grace of God and by virtue of the merits of Jesus Christ--was preserved immune from original sin ([[1.2.2.3.p1k#^ccc-491|491]]). ## Vatican II - Immaculate Conception — "the Immaculate Virgin, preserved free from all guilt of original sin" — [[lumen-gentium-08|LG ¶56, 59]]