The Heart of Mary is the Garden of Jesus. This is the Garden Enclosed-closed to sin, the world and to all that is not God. The Pontiffs themselves have revealed for us the flowers from that Garden : Mary’s divine Motherhood, Virginity, Immaculate Conception, bodily Assumption, and many others not as yet plucked from the garden, yet none the less rare. For a long time those flowers were not gathered together in a bouquet. Hence, it has been difficult to catch their scattered fragrance. The Fathers of Solesmes, however, by their selections from papal pronouncements have made this possible. “To be an enthusiast it is sufficient for devotion to the holy Virgin to be theological,” wrote Father Faber. We may add, “To be an enthusiast it is sufficient to the theology of Mary not to omit devotion.” In the papal teachings, doctrine and devotion go hand in hand. The present collection gathers together only some of the documents covering some two hundred years. But in the Church’s life two hundred is a long period of time, especially when it is a matter of the theology of Mary, which literally came to flower only since the preparation of the definition of the dogma of the Immaculate Conception. All Marian devotees have a motive for sincere gratitude towards the Monks of Solesmes for having undertaken this unique and worthy research and careful compilation.