“There is another related in the Chronicles of St. Dominic. Near Carcassonne, where St. Dominic was preaching the Rosary, there was an unfortunate heretic who was possessed by a multitude of devils. These evil spirits to their confusion were compelled at the command of our Lady to confess many great and consoling truths concerning devotion to her. They did this so clearly and forcibly that, however weak our devotion to our Lady may be, we cannot read this authentic story containing such an unwilling tribute paid by the devils to devotion to our Lady without shedding tears of joy.”

  -Saint Louis Marie de Montfort, The Secret of the Rosary