The chronicles of St. Francis tell of a young friar who had the praiseworthy habit of saying [the Rosary] of our Lady every day before dinner. One day, for some reason or other, he did not manage to say it. The refectory bell had already been rung when he asked the Superior to allow him to say it before coming to the table, and, having obtained permission, he withdrew to his cell to pray.
After he had been gone a long time, the Superior sent another friar to fetch him, and he found him in his room bathed in a heavenly light in the presence of our Lady and two angels. Beautiful roses kept issuing from his mouth at each Hail Mary, and the two angels were taking them one by one and placing them on our Lady’s head, while she smilingly accepted them. Finally, two other friars who had been sent to find out what had happened to the first two saw the same scene, and our Lady did not leave until the whole Rosary had been said.
Source: Miraculous Stories of the Rosary by Saint Louis de Montfort