The Secret Of The Rosary, St. Louis De Montfort, Page 76-79:
“When Saint Dominic was preaching the Rosary near Carcassone an Albigensian was brought to him who was possessed by the devil. Saint Dominic exorcised him in the presence of a great crowd of people; it appears that over twelve thousand had come to hear him preach. The devils who were in possession of this wretched man were forced to answer Saint Dominic's questions in spite of themselves. They said that: 1. That were fifteen thousand of them in the body of this poor man, because he had attacked the fifteen mysteries of the Rosary; 2. They went on to testify that by preaching the Rosary he put fear and horror into the very depths of hell and that he was the man they hated most throughout the whole world, because of the souls which he snatched from them through devotion to the Holy Rosary; 3. They then reveal several other things. Saint Dominic put his rosary around the Albigensian's neck and asked the devils to tell him who, of all the saints in heaven, was the one they feared the most, and who should therefore be the most loved and revered by men. At this they let out such unearthly screams that most of the people fell to the ground, faint from fear. Then, using all their cunning, so as not to answer, the devils wept and wailed in such a pitiful way that many of the people wept also, out of purely natural pity. The devils spoke through the mouth of the Albigensian, pleading in an heartrending voice: Dominic, Dominic, have mercy on us- we promise you that we will never hurt you. You have always had compassion for sinners and those in distress; have pity on us, for we are in grievous straits. We are suffering so very much already, so why do you delight in heightening our pains? Can't you be satisfied with our suffering without adding to it? Have pity on us! Have pity on us! Saint Dominic was not one whit moved by the pathos of these wretched spirits and told them that he would not let them alone until they had answered his question. Then they said they would whisper the answer in such a way that only Saint Dominic would be able to hear. The latter firmly insisted upon their answering clearly and out loud. Then the devils kept quiet and refused to say another word, completely disregarding Saint Dominic's orders- so he knelt down and prayed thus to Our Lady: “Oh, all powerful and wonderful Virgin Mary, I implore you by the power of the Most Holy Rosary, order these enemies of the human race to answer me. No sooner had he made this prayer than a glowing flame leaped out of the ears, nostrils and mouth of the Albigensian. Everyone shook with fear, but the fire did not hurt anyone. Then the devils cried: Dominic, we beseech you, by the passion of Jesus Christ and by the merits of His Holy Mother and of all the saints, let us leave the body of this man without speaking further-for the angels will answer your question whenever you wish. After all, are we not liars? So why should you want to believe us? Please don't torture us any more; have pity on us. Woe unto you wretched spirits, who do not deserve to be heard, Saint Dominic said, kneeling down he prayed to Our Lady: Oh most worthy Mother of Wisdom, I am praying for the people assembled here who have already learned how to say the Angelic Salutation properly. Please, I beg of you, force your enemies to proclaim the whole truth and nothing but the truth about this, here and now, before the multitude. Saint Dominic had hardly finished this prayer when he saw the Blessed Virgin near at hand, surrounded by a multitude of angels. She struck the possessed man with a golden rod that she held and said: Answer my servant Dominic at once. (Remember, the people neither saw or heard Our Lady, but only Saint Dominic.) Then the devils started screaming: Oh you who are our enemy, our downfall and our destruction, why have you come from heaven just to torture us so grievously? O Advocate of sinners, you who snatch them from the very jaws of hell, you who are the very sure path to heaven, must we, in spite of ourselves, tell the whole truth and confess before everyone who it is who is the cause of our shame and our ruin? Oh woe unto us, princes of darkness: Then listen well, you Christians: the Mother of Jesus Christ is all-powerful and she can save her servants from falling into hell. She is the Sun which destroys the darkness of our wiles and subtlety. It is she who uncovers our hidden plots, breaks our snares and makes our temptations useless and ineffectual. We have to say, however reluctantly, that not a single soul who has really persevered in her service has ever been damned with us; one single sigh that she offers to the Blessed Trinity is worth far more than all the prayers desires and aspirations of all the saints. We fear her more than all the other saints in heaven together and we have no success with her faithful servants. Many Christians who call upon her when they are at the hour of death and who really ought to be damned according to our ordinary standards are saved by her intercession. Of if only that Mary (it is thus in their fury that they called her) had not pitted her strength against ours and had not upset our plans, we should have conquered the Church and should have destroyed it long before this; and we would have seen to it that all the Orders in the Church fell into error and disorder. Now that we are forced to speak we must also tell you this: nobody who perseveres in saying the Rosary will be damned, because she obtains for her servants the grace of true contrition for their sins and by means of this the obtain God's forgiveness and mercy. Then Saint Dominic had them all say the Rosary very slowly and with great devotion, and a wonderful thing happened: at each hail Mary that he and the people said together a large group of devils issued forth from the wretch man's body under the guise of red-hot coals. When the devils had all been expelled and the heretic at last entirely free of them, Our Lady (who was still invisible) gave her blessing to the assembled company, and they were filled with joy because of this. A large number of heretics were converted because of this miracle and joined the Confraternity of the Most Holy Rosary.”
The Secret Of The Rosary, St. Louis De Montfort, Page 68:
“Father Dorland says that in 1481 Our Lady appeared to Venerable Dominic, the Carthusian, who lived at Treves, and Said to Him: Whenever one of the faithful who is in a state of grace says the Rosary while meditating on the mysteries of the life and passion of Jesus Christ, he obtains full and entire remission of all his sins.”
The Secret Of The Rosary, St. Louis De Montfort, Page 68-69:
“Our Lady also said to Blessed Alan: I want you to know that, although there are numerous indulgences already attached to the recitation of my Rosary, I shall add many more to every fifty Hail Marys, (each group of five decades) for those who say them devoutly, on their knees-being, of course, free from mortal sin. And whosoever shall preserve in the devotion of the Holy Rosary, saying these prayers and mediation shall be rewarded for it; I shall obtain for him full remission of the penalty and of the guilt of all his sins at the end of his life. Do not be unbelieving, as though this is impossible. It is easy for me to do because I am the Mother of the King of heaven, and He calls me full of grace. And, being full of grace, I am able to dispense grace freely to my dear children.”
The Secret Of The Rosary, St. Louis De Montfort, Page 12: “If you say the Rosary faithfully until death, I do assure you that, in spite of the gravity of your sins 'you shall receive a never fading crown of glory.' (1 Peter 5:4) Even if you are on the brink of damnation, even if you have one foot in hell, even if you have sold your soul to the devil as sorcerers do who practice black magic, and even if you are a heretic as obstinate as a devil, sooner or later you will be converted and will amend your life and save your soul, if-and mark well what I say-if you say the Holy Rosary devoutly everyday until death for the purpose of knowing the truth and obtaining contrition and pardon for your sins.”
The Secret of the Rosary, St. Louis De Montfort, Page 45-46: “The heretics, all of whom are children of the devil and who clearly bear the sign of God's reprobation, have a horror of the Hail Mary. They still say the Our Father, but never the Hail Mary; they would rather carry a poisonous snake about them than a scapular or carry a rosary. Among Catholics, those who bear the mark of God's reprobation think but little of the rosary (whether that of five decades or fifteen). They either neglect to say it or only say it quickly and in a lukewarm manner.”
Bishop Hugh Boyle: “No one can live continually in sin and continue to say the Rosary. Either he will give up sin or he will give up the Rosary.”
The Secret of the Rosary, St. Louis De Montfort, Page 30: “Saint Bonaventure said (in his Psalter) that whoever neglected Our Lady would perish in his sins and would be damned: "He who neglects her will die in his sins." If such is the penalty for neglecting her, what must be the punishment in store for those who actually turn others away from their devotions!”
The Secret of the Rosary, St. Louis De Montfort, Page 99: “Before the Holy Rosary took root in these small towns and villages, dances and parties of debauchery went on all the time; dissoluteness, and wantonness, blasphemy, quarrels and feuds flourished. One heard nothing but evil songs and double meaning talk. But now nothing is heard but hymns and the chant the Our Father and Hail Mary. The only gatherings to be seen are those of twenty, thirty or a hundred or more people who, at a fixed hour, sing Almighty God's praises just as religious do. There are even places where the Rosary is recited in common - five mysteries at a time - at three special times a day. What a blessing from Heaven this is! Just as there are wicked people everywhere, do not expect to find that the place you live in is free of them; there will be some who will be certain to avoid coming to Church for the Rosary and they may even make fun of it and will probably do everything in their power to stop you from going, exerting their influence by bad example and bad language. But do not give up. As these wretched souls will have to be separated from God and heaven for all eternity because their place will be in hell, already here on earth they have to be separated from the company of Christ Our Lord and His servants and hand-maids.”