St. Dominic declares that the redemption of the holy souls from Purgatory is one of the principal effects of the Rosary. The Venerable Alanus writes that many of the brethren had appeared to them whilst reciting the Rosary, and had declared that next to the Holy Sacrifice of the Mass there was no more powerful means than the Rosary to help the suffering souls. Also, that numerous souls were daily released thereby, who would otherwise have been obliged to remain there for years. St. Alphonsus Liguori therefore says: "If we wish to be of material assistance to the souls in Purgatory, we must always recommend them in our prayers to the Blessed Virgin Mary, and especially offer the holy Rosary for them."
Let us then frequently and with devotion recite the Rosary, which is so pleasing to our Blessed Mother, recommended most especially by the Holy Church, discloses to us a rich source of grace, and is so efficacious in relieving the suffering souls and opening Heaven to them. Should our labor prevent us from reciting the entire Rosary every day, let us, at least, say it in part. This simple homage to the Queen of Heaven will draw down great blessings upon us, and the holy souls will be wonderfully consoled and relieved, if this devotion be offered in their behalf.
Prayer: Graciously hear, O Lord! the prayer we offer Thee in the holy Rosary, in honor of Mary, Thy Virgin Mother, for the relief of the souls in Purgatory, while by devoutly meditating on Thy holy life and suffering, we implore Thy divine assistance. Who livest and reignest, world without end. Amen.
Special Intercession: Pray for the souls who were most devoted to the holy Rosary.
Lord grant them eternal rest and let perpetual light shine upon them. May they rest in peace. Amen. (Three times.)
Practice: Recite the Rosary for the suffering souls.
Invocation: My Jesus, mercy