Saturday is the day of Mary because, on that first Saturday in history — Holy Saturday — just as today, Mary kept the faith of the Church within her Immaculate Heart. The sacrifice of Jesus had not been offered in vain. Mary believes, and thus she entrusts to the Church and to her Apostles the mystery that makes us Christians: the full truth of Good Friday together with the joy of the Resurrection. Mary’s faith holds together the Church’s pre- and post-Paschal faith, without any break.