11 Finally let all do their best to gain the graces of heaven during this time by a special devotion to the great Mother of God. For We wish this Jubilee to be placed under the patronage of the Most Holy Rosary of the Virgin; and with her assistance We are confident that there will be many whose souls, set free by the cleansing away of the stains of sin, will be renewed by faith and piety and justice, not only to the hope of eternal salvation, but also as an earnest of amore peaceful time.
Source: Quod Auctoritate (Vatican.va)