In the 1930s our Lord promised Blessed Faustina that he would remit all temporal punishment due to forgiven sin for anyone who would fulfill the following conditions on Divine Mercy Sunday (the Sunday after Easter):
1.) Go to Confession. The Church has determined that, since it is impossible for everyone to go to Confession on that one Sunday, it is sufficient to make a normal pre-Easter Confession.
2.) Receive Holy Communion.
3.) Venerate the Sacred Image of the Divine Mercy, expressing complete trust in Jesus, if possible in a church where this image is displayed.
4.) Say one Our Father and one Apostles’ Creed before the Sacred Image of the Divine Mercy.
5.) Perform works of mercy toward others. [The spiritual works of mercy are: Admonish sinners: Instruct the uninformed; Counsel the doubtful; Comfort the sorrowful; Be patient with those in error; Forgive offenses; and pray for the living and the dead. The corporal works of mercy are: Feed the hungry; Give drink to the thirsty; Clothe the naked; Shelter the homeless; Comfort the imprisoned; Visit the sick; Bury the dead.]
Nota bene: This is not a plenary indulgence. Like a plenary indulgence, it does remit all temporal punishment due to forgiven sin. However, it differs from a plenary indulgence in its source and requirements. The Church grants all indulgences, whereas this annual Divine Mercy Sunday remission was granted directly by our Lord. The Church establishes the requirements for all indulgences, which are different from the above requirements our Lord established for this annual Divine Mercy Sunday remission.
This distinction suggests that one may earn both a plenary indulgence and the Divine Mercy Sunday remission on this one Sunday. The Church allows a person to earn only one plenary indulgence per day, but since the above remission is not a plenary indulgence, one should be able to earn both on Divine Mercy Sunday. Why earn both? So you can give the plenary indulgence to a poor soul in purgatory and keep the above remission for yourself.
If you get someone out of purgatory, you gain a very good friend in a very high place. In fact, you should consider earning a plenary indulgence every day and applying it to the poor souls. We all need lots of friends in high places as we struggle with the world, the flesh, and the devil here on earth. I figure that if I get enough souls out of purgatory, they by working together in heaven just might be able to get me into purgatory!
Another (better) option is to earn a plenary indulgence every day and turn them all over to the Blessed Virgin to be used as she sees fit. She won’t be outdone in generosity.