A novena is typically nine days of prayer in preparation of a celebration of a feast day.
These novena prayers are from St. Maria Faustina's diary where she wrote about her encounters with Jesus. He specifically asked her to create a novena of Chaplets to be said leading up to Divine Mercy Sunday, beginning on Good Friday. She wrote that Jesus said to her, "By this novena, I will grant every possible grace to souls." Jesus gave St. Faustina an intention for each day of the novena. Each intention is that we would pray for a different group of souls each day, asking for God's mercy for them. The words at the beginning of each day's prayer, is what Saint Faustina says that Jesus asked us to pray for.
The prayers can be said anytime, but the Lord specifically asked that it be recited as a novena. He promised, "By this Novena I will grant every possible grace to souls."
PDF of prayers of Novena To Divine Mercy HERE
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First Day: all mankind, especially all sinners
Second Day: the souls of priests and religious
Third Day: all devout and faithful souls
Fourth Day: those who do not believe in God and those who do not yet know Me
Fifth Day: the souls of those who have separated themselves from My church
Sixth Day: the meek and humble souls and the souls of little children
Seventh Day: the souls who especially venerate and glorify My mercy
Eighth Day: the souls who are detained in Purgatory
Ninth Day: souls who have become lukewarm
"I desire that during these nine days you bring souls to the fountain of My mercy, that they may draw there from strength and refreshment and whatever grace they have need of in the hardships of life, and especially at the hour of death" (Diary, 1209).
Act of Contrition
Learn more about Novenas.