To gain our requests, we should be careful to perform all our actions well for the love of Jesus and Mary. In order that this devotion may be fruitful, all who practice it should try to imitate the virtues of Jesus and Mary by constant and devout meditation on Their most holy lives. Hence, on each Saturday/Sunday it will be necessary to meditate on the appointed Mystery in order to draw from it fruit for our spiritual advancement; it would be well also to sanctify the day by the recital of the whole Rosary [or at the least, the five decades containing the appointed Mystery].   The Rosarians Handbook 

At Communion:

By means of Holy Communion Jesus unites Himself intimately to the soul, and it is the most favorable time to ask for favors...ask with lively faith from Jesus, through Our Lady of the Rosary, and you will obtain it.   The Fifteen Saturdays of the Rosary 

Mysteries and suggested virtues for meditation and practice from The Fifteen Saturdays of the Rosary:

Week:     1 - The Annunciation              Humility
              2 - The Visitation                    Charity
              3 - The Nativity                      Poverty
              4 - The Presentation               Purity
              5 - The Finding in the Temple  Obedience
              6 - The Agony in the Garden   Resignation to the Will of God
              7 - The Scourging at the Pillar  Patience
              8 - The Crowning with Thorns  Love of Contempt
              9 - The Carrying of the Cross    Love of the Cross
            10 - The Crucifixion                   Love of Our Enemies
            11 - The Resurrection               Faith
            12 - The Ascension                   Hope
            13 - The Descent of the Holy Ghost      Zeal for the Salvation of Souls
            14 - The Assumption                Devotion of the Blessed Virgin Mary
            15 - The Coronation                 Perseverance

Explanation of This Devotion           

            “Everyone can well value the excellence of this heavenly treasure [The Fifteen Saturdays] from the preciousness of the whole Rosary, the prayer dearest to Mary, the most favored by the Saints, the most decorated by kings, the most privileged by the Pontiffs, the most frequented by people, illustrated by God with the most stupendous miracles, and strengthened by the greatest promises the Blessed Virgin ever made.  Add to this the merits and immense graces the soul gains by considering the Life and Passion of Jesus Christ.

            “It is true that such meditations themselves are very profitable to purge and enlighten the soul and unite them to God; but who can deny that this consideration, joined to the recitation of the Rosary, is a kind of prayer much more perfect and noble, sweeter, easier, and more profitable to souls?

            “But the excellent practice of the Fifteen Saturdays does not only contain what is holiest and most efficacious in the Rosary, viz. the remembrance of the actions and sorrows of Jesus, but, which is more, the frequentation of the Sacraments, especially Holy Communion received in memory of what our Savior did for us, the perseverance in prayers and the intercession of the Blessed Virgin.  Moreover, it unites to all these things a particular application, in order to please God in our works and to sanctify ourselves during fifteen weeks.  Behold the most powerful efficacy of this devotion!

            “Our Savior, seeing Himself commemorated, pitied, thanked by us in the consideration of His Mysteries, just as we unite ourselves to Him by Holy Communion… He sees Himself, as it were, almost obliged to request His Eternal Father, and show Him His wounds, His Blood, His merits, which all then become our own by means of Holy Communion.”   The Fifteen Saturdays of the Most Holy Rosary 

I am the Way, the Truth, and the Life; these are the words of Jesus, the Eternal Wisdom.  He who does not seek Jesus can never know Him or walk in the straight path which leads to heaven, but will certainly fall in to the darkness of error.

Let us seek Him in the Rosary, keeping before our minds the Mysteries contained in it; let us meditate upon them seriously.  This study will enable us to discover therein countless beauties which will incite us to love ever more and more the most sweet Hearts of Jesus and Mary.  We shall feel ourselves happily drawn to God, the source of our eternal happiness, and we shall be content even under the weight of the sorrows we meet with whilst here on earth.

If it should happen that, not content with practicing this devotion on Saturdays, some were led to repeat it often, nay, even every day of the week, who can tell the immense advantages their souls would obtain when they had accomplished fifteen entire weeks of pious meditation of the life, death, and resurrection of Jesus?   The Rosarians Handbook 

This admirable devotion has obtained for the faithful innumerable blessings and signal favors; according to authentic depositions, the blind have received their sight; the deaf, hearing; the dumb, speech; the paralytic and those afflicted with many other corporal maladies have been healed.  By it extraordinary conversions of obdurate sinners have been obtained, passions conquered, and virtues acquired.  And now, as in the past, those who perform this devotion with faith and fervor may hope… to receive similar favors and blessings, and to have their most grievous maladies of both body and soul cured.  When we desire to obtain any favor from God, we should endeavor to perform this devotion.   The Fifteen Saturdays of the Rosary 

This devotion of the fifteen Saturdays/Sundays can be practiced at any time during the year, either with the intention of obtaining some special favors, or as an act of thanksgiving, or from pure devotion, and when ended may be begun again immediately.   The Rosarians Handbook 

Indulgences   (taken from The Raccolta, 1952)

            #397 The faithful who resolve to perform a devout exercise in honor of Our Lady of the Rosary for fifteen uninterrupted Saturdays (or these being impeded, for as many respective Sundays immediately following) if they devoutly recite at least a third part of the Rosary or meditate on its mysteries in some other manner may gain:  A plenary indulgence on the usual conditions, on any of these fifteen Saturdays, or corresponding Sundays.

            #395c Those who piously recite a third part of the Rosary in the presence of the Blessed Sacrament publicly exposed or even reserved in the tabernacle, as often as they do this, may gain:  1. A plenary indulgence, on the condition of confession and Communion.  2. If, as is the custom during the recitation of the Rosary, the faithful use a chaplet [Rosary], they may gain other indulgences in addition to those enumerated above, if the chaplet is blessed by a religious of the Order of Preachers or another priest having special faculties.

Dominican Slaves of Jesus through Mary
Third Order of  Penance of St. Dominic