Let us Pray.
O Lord, Who hast united all nations in the confession of Thy Name, we pray Thee for our formerly Catholic brethren of the East. Mindful of the eminent place they once held in Thy Church, we beg of Thee to inspire them with the desire to occupy it again, so as to form with us one single Fold, under the guidance of one and the same Shepherd. Grant that they, together with ourselves, may be penetrated with the teaching of those holy Doctors of the Eastern Church, who are also our Fathers in the Faith, and submit themselves in all humility to the voice of Peter, the Prince of the Apostles, Who so dearly desires to feed the lost sheep and lambs who have wandered from the Fold. Grant that the spirit of peace and charity, which is the mark of Thy presence with the faithful, may hasten the day in which our prayers may be united with theirs, so that every people and every tongue may acknowledge and glorify Our Lord Jesus Christ, Thy Son. Amen. (300 days)
Let us Pray.
O Mary, Mother of mercy and Refuge of sinners, we beseech thee, be pleased to look with pitiful eyes upon miserable heretics and schismatics, especially those pitiful souls once united with us in our former community and congregation who have now separated themselves from the true Church. Thou who art the Seat of Wisdom, enlighten the minds that are miserably enfolded in the darkness of ignorance and sin, that they may clearly know that the one Holy Catholic and Apostolic Church is the one true Church of Jesus Christ, outside of which neither holiness nor salvation can be found. Finish the work of their conversion by obtaining for them the grace to accept all the truths of our holy Faith and to submit themselves to the true Bishops of Thy Church, the successors of Thy Apostles; that so, being united with us in the sweet chains of Divine charity, there may soon be one only fold under the same one Shepherd; and may we all, O glorious Virgin, sing forever with exultation: Rejoice, O Virgin Mary, thou alone hast destroyed all heresies in the whole world. Amen. Three Aves. (500 days.)
(Three Hail Mary's)
For more information and the Official Prayer for each day of the Octave, see the post on the Octave of Christian Unity