The Catholic Church gives the name Purgatory to the final purification of all who die in God’s grace and friendship. According to Catholic doctrine, some souls are not sufficiently free from sin and its consequences to enter the state of heaven immediately, nor are they so sinful as to be destined for hell either. Such souls, ultimately destined to be united with God in heaven, must first endure purgatory—a state of purification. In purgatory, souls achieve the holiness necessary to enter the joy of heaven.The Catholic Church teaches that the fate of those in purgatory can be affected by the actions of the living, such as prayers and indulgences.
Oh! Jesus, because of your bitter passion and the wounds on your sacred body, Jesus, merciful Jesus, have mercy on the souls in purgatory. Because of your bitter agony and death on the cross, give the souls in purgatory especially (Name any one you know) eternal rest. Eternal Rest, grant unto them. O Lord and let the perpetual light shine upon them. May they rest in peace. Amen.