2 At the same time We love to offer Our thanks for this signal benefit to the august Mother of God, whose powerful intercession We feel to have been exercised in Our behalf. For hers is the loving kindness which, during the length of years and the vicissitudes of life, has never failed Us, and which day by day seems to draw nearer to Us than ever, filling Our soul with gladness, and strengthening Us with a confidence of which the surety is higher than the things of time. It is as if the voice of the heavenly Queen made itself heard to Us, at one moment graciously consoling Us in the midst of trials; at another guiding Us by her counsel in directing the great work of the salvation of souls; at another, urging Us to admonish the Christian people to advance in piety and in the practice of every virtue. For Us it is once more a joy as well as a duty to respond to her inspirations. Amongst the happy results which have already rewarded Our exhortations which were due to her prompting, We have to reckon the remarkable impulse given to the Devotion of the Most Holy Rosary. This awakening has made itself felt in the increased number of Confraternities instituted for the purpose, the voluminous literature of pious and learned works written upon the subject, and the manifold tributes which Christian art has not failed to bring to its service. And now, as if for yet another time, listening to the voice of the same zealous Mother, who calls upon Us to "cry out and cease not," We rejoice once more to address you, Venerable Brethren, upon the subject of the Rosary, standing as We do upon the eve of that month of October which, by the award of special Indulgences, We have deemed it well to dedicate to this most popular devotion. Our appeal to you, however, will not be directed so much to add any further recommendation of a method of prayer so praiseworthy in itself, nor yet to press upon the faithful the necessity of practising it still more fervently, but rather to point out how we may draw from this devotion certain advantages which are especially valuable and needful at the present day.
Source: Laetitiae Sanctae (Vatican.va)