First Saturday Masses will be held the first Saturdays throughout the year. The First Saturdays Devotion also called the Act of Reparation to the Immaculate Heart of the Blessed Virgin Mary, is a Catholic devotion which, according to Sister Lúcia of Fátima, was requested by the Virgin Mary in an apparition at Pontevedra, Spain, in December 1925.
The heart of Mary mirrors the heart of Jesus both in great love and in sharing His suffering. This devotion increased after the appearances of the Blessed Mother to three children of Fátima, Portugal, early in the twentieth century. The Blessed Mother told the eldest of the children that she would “assist at the hour of death with all the graces necessary for the salvation of their souls” all who, for five months, on the first Saturday of each month (from SimplyCatholic.com)
confess their sins,
receive Holy Communion,
recite the Rosary and keep Mary company for fifteen minutes while meditating on the fifteen mysteries of the Rosary,