The Blessed Virgin Mary promised to Saint Dominic and to all who follow that “Whatever you ask in the Rosary will be granted.” She left for all Christians Fifteen Promises to those who recite the Holy Rosary.

Imparted to Saint Dominic and Blessed Alan

1. Whoever shall faithfully serve me by the recitation of the Rosary, shall receive signal graces.
2. I promise my special protection and the greatest graces to all those who shall recite the Rosary.
3. The Rosary shall be a powerful armor against hell, it will destroy vice, decrease sin, and defeat heresies.
4. The Rosary will cause virtue and good works to flourish; it will obtain for souls the abundant mercy of God; it will withdraw the hearts of men from the love of the world and its vanities, and will lift them to the desire for eternal things. Oh, that souls would sanctify themselves by this means.
5. The soul which recommends itself to me by the recitation of the Rosary, shall not perish.
6. Whoever shall recite the Rosary devoutly, applying himself to the consideration of its sacred mysteries shall never be conquered by misfortune. God will not chastise him in His justice, he shall not perish by an unprovided death; if he be just he shall remain in the grace of God, and become worthy of eternal life.
7. Whoever shall have a true devotion for the Rosary shall not die without the sacraments of the Church.
8. Those who are faithful to recite the Rosary shall have during their life and at their death the light of God and the plenititude of His graces; at the moment of death they shall participate in the merits of the saints in paradise.
9. I shall deliver from Purgatory those who have been devoted to the Rosary.
10. The faithful children of the Rosary shall merit a high degree of glory in Heaven.
11. You shall obtain all you ask of me by the recitation of the Rosary.
12. All those who propagate the Holy Rosary shall be aided by me in their necessities.
13. I have obtained from my Divine Son that all the advocates of the Rosary shall have for intercessors the entire celestial court during their life and at the hour of death.
14. All who recite the Rosary are my sons and daughters, and brothers and sisters of my only Son Jesus Christ.
15. Devotion of my Rosary is a great sign of predestination.

Seven Great Blessings of the Rosary

In The Secret of the Rosary Saint Louis de Montfort informs us:

The Rosary recited with meditation on the mysteries brings about the following marvelous results:

1. It gradually gives us a perfect knowledge of Jesus Christ;
2. It purifies our souls, washing away sin;
3. It gives us victory over all our enemies;
4. It makes it easy for us to practice virtue;
5. It sets us on fire with love of Our Blessed Lord;
6. It enriches us with graces and merits;
7. It supplies us with what is needed to pay all our debts to God and to our fellow men, and finally, it obtains all kinds of graces for us from Almighty God.

 Blessings of the Rosary

1. Sinners are forgiven.
2. Souls that thirst are refreshed.
3. Those who are fettered have their bonds broken.
4. Those who weep find happiness
5. Those who are tempted find peace.
6. The poor find help.
7. Religious are reformed.
8. Those who are ignorant are instructed.
9. The living learn to overcome pride.
10. The dead (the Holy Souls) have their pains eased by suffrages.

Indulgences

From Enchiridion indulgentiarum Recitation of the Marian Rosary (Rosarii marialis recitatio)

An indulgence is the remission before God of the temporal punishment due to sins whose guilt has already been forgiven, a remission, which one of the faithful, properly disposed and under certain definite conditions, can acquire through the Church, which authoritatively dispenses, applying the treasure of the satisfactions of Christ and the Saints.
An indulgence is either PLENARY or PARTIAL, depending upon whether it frees one from the whole or from a part of the temporal punishment due to sin.
This means that one of the faithful who, with at least a contrite heart, performs a work enriched with a partial indulgence, is granted by the power of the Church that same amount of remission of temporal punishment as he has already obtained by the work itself. In other words, the remission is doubled, and that as often as the work prescribed is performed.  A plenary indulgence means a full remission of temporal punishment, provided that several other conditions apply, in addition  to the work performed or prayer said.

A plenary indulgence is granted, if the Rosary is recited in a church or public oratory or in a family group, a religious Community or pious Association; a partial indulgence is granted in other circumstances.

• “Now the Rosary is a certain formula of prayer, which is made up of fifteen decades of “Hail Marys” with an “Our Father” before each decade, and in which the recitation of each decade is accompanied by pious meditation on a particular mystery of our Redemption.” (Roman Breviary) The name “Rosary,” however, is commonly used in reference to only a third part of the fifteen decades.The gaining of the plenary indulgence is regulated by the following norms:
• 1) The recitation of a third part only of the Rosary suffices; but the five decades must be recited continuously.
• 2) The vocal recitation must be accompanied by pious meditation on the mysteries.
• 3) In public recitation the mysteries must be announced in the manner customary in the place; for private recitation, however, it suffices if the vocal recitation is accompanied by meditation on the mysteries.