Here’s a wonderful explanation. Glad to have found this thread. Someone asked me for information regarding this. Now I’m sharing this with you.
quote:
Mercy Sunday’s Special Graces, Plenary Indulgence: Are They the Same?
What is the difference between that special graces promised by Jesus for devout communicants on Mercy Sunday, and the plenary indulgence for Mercy Sunday devotions that was instituted several years ago by Pope John Paul II? Are they the same thing? Or are they different?
Simply put: They are NOT the same thing!
The main difference, of course, is that an “indulgence” is something offered to the faithful by the Church, as the keeper of the keys of the kingdom, with authority to “bind and loose” (see Mt 16:17-19). The special graces of Mercy Sunday, on the other hand, were promised directly by our Lord, through a prophetic revelation given to St. Faustina (see Diary of St. Faustina, 699). The Church has not officially ruled that this particular promise was an authentic supernatural revelation (and no Catholic is required to believe it as a matter of faith), but the Church has discerned, in various ways, that there is nothing that violates Catholic doctrine in this promise.
thedivinemercy.org/news/story.php?NID=2485