O holy souls in Purgatory, Who are the certain heirs of heaven, Souls most dear to Jesus As the trophies Of his Precious Blood, And to Mary, Mother of Mercy, Obtain for me Through your intercession The grace to lead a holy life, To die a happy death And to attain To the blessedness Of eternity in heaven. Dear Suffering Souls, Who languish in your Prison of pain And long to be delivered In order to praise And glorify God in heaven, By your unfailing pity Help me at this time, [State your intention(s) here...] That I may obtain relief And assistance from God. In gratitude For your intercession I offer to God on your behalf The satisfactory merits Of all my works And sufferings of this day/week/month. (The time that you determine.)
Attend Holy Mass and have a Mass offered for them, if possible. Offering of the Precious Blood and the Way of the Cross are also powerful means of helping them and obtaining their help.