According to the Spirit of St. Francis de Sales
by Don Caspar Gilli

The Month of Mary, written by the 18th-century Jesuit Don Caspar Gilli, is a day-by-day guide for the month of May. Each day offers a short consideration on the virtues of the Blessed Mother, along with a prayer and a practice for the day. There is no better way to honor our Heavenly Mother than by practicing the virtues closest to her Immaculate Heart.