From The Glories of Mary by St. Alphonsus Liguori, a continuation of the chapter named Various Examples Appertaining to the Most Blessed Virgin Mary:
72. A person of impure life who had not the courage to quit his sins, began to say the Rosary, and was delivered from his vices.
73. Another person who maintained a sinful friendship was seized with abhorrence of his sin by saying the Rosary. He yielded again to temptation, but by means of the Rosary finally freed himself from it.
74. A good priest who was attending a woman on her death-bed,who bitterly hated her husband, not knowing by what means to convert her, withdrew to say the Rosary, and at the last moment that woman saw her sinfulness, repented, and forgave her husband.
75. Finally, the same author relates, that once making a mission to the convicts in the galleys of Naples, he found some who obstinately refused to make their confession. He suggested to them that at least they should have themselves enrolled in the confraternity of the Rosary, and begin to recite it. They consented to do so, and they had no sooner recited one than they desired to make their confession, and did so, the first time for many years. These modern examples serve to revive our confidence in Mary, seeing that she is at the present time the same that she always has been towards those who have recourse to her.
76. St. Gregory relates that a holy Bishop of Ferento, was from childhood devoted to relieving the poor. It happened one day that a certain priest, his nephew, sold a horse for ten crowns of gold, and took the money arid locked it up. The bishop not having any thing to give when some poor persons came to beg of him, broke open the chest and distributed the money to them. His nephew made such a disturbance when he discovered it, that the holy prelate, not knowing what to do, went for help to a church dedicated to Mary. When behold, he saw ten crowns lying on the drapery of the statue and took them and gave them to his nephew.
77. A Lutheran lady of Augsburg in Germany, who was a very obstinate heretic, happening to pass one day a small Catholic chapel, went in through curiosity. She saw there an image of Mary with the infant Jesus in her arms, and felt moved to make an offering to it. She accordingly went home, took a silk cloth, and brought it to the altar of the Virgin. When she had returned home the most holy Virgin enlightened her to see the errors of her sect, and she went immediately to seek some Catholics, abjured heresy, and was converted to God.
78. In the city of Cesena there lived two very bad men who were friends. One of them, named Bartholomew, in the midst of all his vices practised the devotion of reciting everyday the "Stabat Mater" in honor of the sorrowful Mary. Once when he was repeating this hymn Bartholomew had a vision, in which he seemed to stand with his sinful companion in a lake of fire, and saw the most holy Virgin, moved to pity, offer her hand and take him from the flames. She directed him to seek pardon from Jesus Christ, who showed himself willing to pardon him through the prayers of his mother. The vision ended, and Bartholomew at the moment heard the intelligence that his friend had been mortally wounded and was dead. Then he knew the truth of the vision, and quitting the world, entered the order of Capuchins, where he led a most austere life, and died in the fame of sanctity.
Keep the Faith!