St. Louis de Montfort on Praying the Rosary Slowly and Fervently

41st Rose:

It is not so much the length of a prayer, but the fervor with which it is said which pleases Almighty God and touches His Heart. One single Hail Mary that is said properly is worth more than one hundred and fifty that are badly said. Most Catholics say the Rosary, the whole fifteen mysteries or five of them anyway or, at least a few decades. So why is it then that so few of them give up their sins and go forward in the spiritual life? Surely it must be because they are not saying them as they should. It is a good thing to think over how we should pray if we really want to please God and become more holy.

To say the Holy Rosary to advantage one must be in a state of grace or at the very least be fully determined to give up mortal sin. This we know because all our theology teaches us that good works and prayers are only dead works if they are done in a state of mortal sin. Therefore they can neither be pleasing to God nor help us gain eternal life. This is why Ecclesiastes says: "Praise is not seemly in the mouth of a sinner." [1] Praise of God and the salutation of the Angel and the very Prayer of Jesus Christ are not pleasing to God when they are said by unrepentant sinners.

Our Lord said: "This people honoreth Me with their lips, but their heart is far from Me." [2] It is as though He was saying: "Those who join My Confraternity and say their Rosary every day (even perhaps the fifteen decades), but without being sorry for their sins offer Me lip service only and their hearts are far from Me." [...]

44th Rose:

[...] Take great care to avoid the two pitfalls that most people fall into during the Rosary. The first is the danger of not asking for any graces at all, so that if some people were asked their Rosary intention they would not know what to say. So, whenever you say your Rosary, be sure to ask for some special grace. Ask God's help in cultivating one of the great Christian virtues or in overcoming one of your sins. 

The second big fault a lot of people make when saying the Holy Rosary is to have no intention other than that of getting it over as quickly as possible! This is because so many of us look upon the Rosary as a burden which is always heavier when we have not said it—especially if it is weighing on our conscience because we have promised to say it regularly or have been told to say it as a penance more or less against our will.

It is really pathetic to see how most people say the Holy Rosary—they say it astonishingly fast and mumble so that the words are not properly pronounced at all. We could not possibly expect anyone, even the most unimportant person, to think that a slipshod address of this kind was a compliment and yet we expect Jesus and Mary to be pleased with it! Small wonder then that the most sacred prayers of our holy religion seem to bear no fruit, and that, after saying thousands of Rosaries, we are still no better than we were before! Dear Confraternity members, I beg of you to temper the speed which comes all too easily to you and pause briefly several times as you say the Our Father and Hail Mary. I have placed a cross at each pause, as you will see:

Our Father Who art in Heaven, † hallowed be Thy name, † Thy kingdom come, † Thy will be done † on earth as it is in Heaven. † Give us this day † our daily bread † and forgive us our trespasses † as we forgive those who trespass against us, † and lead us not into temptation † but deliver us from evil. Amen. 

Hail Mary, full of grace, † the Lord is with Thee, † blessed art thou among women † and blessed is the Fruit of Thy womb, Jesus. †
Holy Mary, Mother of God, † pray for us sinners, now † and at the hour of our death. Amen.

At first, you may find it difficult to make these pauses because of your bad habit of saying prayers in a hurry; but a decade that you say recollectedly in this way will be worth more than thousands of Rosaries said all in a rush—without any pauses or reflection. [...]

47th Rose:

Dear Rosary Confraternity members, if you want to lead a fashionable life and belong to the world—by this I mean if you do not mind falling into mortal sin from time to time and then going to Confession, and if you wish to avoid conspicuous sins which the world considers vile and yet at the same time commit "respectable sins"—then, of course, there is no need for you to say so many prayers and Rosaries. You only need to do very little to be "respectable": a tiny prayer at night and morning, an occasional Rosary which may be given to you for your penance, a few decades of Hail Marys said on your Rosary (but haphazardly and without concentration) when it suits your fancy to say them—this is quite enough. If you did less, you might be branded as a freethinker or a profligate; if you did more, you would be eccentric and a fanatic. But if you want to lead a true Christian life and genuinely want to save your soul and walk in the saints' footsteps and never, never, fall into mortal sin—if you wish to break Satan's traps and divert his flaming darts, you must always pray as Our Lord taught and commanded you to do.

If you really have this wish at heart, then you must at least say your Rosary or the equivalent, every day. I have said "at least" because probably all that you will accomplish through your Rosary will be to avoid mortal sin and to overcome temptation. This is because you are exposed to the strong current of the world's wickedness by which many a strong soul is swept away; you are in the midst of the thick, clinging darkness which often blinds even the most enlightened souls; you are surrounded by evil spirits who being more experienced than ever and knowing that their time is short are more cunning and more effective in tempting you.

---

Footnotes:

1. Eccl. 15:9.
2. Mark 7:6.

---

Source: St. Louis de Montfort, The Secret of the Rosary, Catholic Tradition, http://www.catholictradition.org/Classics/secret-rosary.htm.