Divine Mercy Sunday is the day after tomorrow, the first Sunday after Easter, the day that Christ promised that the fountain of His mercy would open in a special way for all who would trust in Him.
My Heart overflows with great mercy for souls, especially for poor sinners…[I]t is for them that the Blood and Water flowed from My Heart as from a fount overflowing with mercy. For them I dwell in the tabernacle as King of Mercy (Diary, 367).
How do you avail yourself of the outpouring of that fountain of mercy? Jesus tells us, through Saint Faustina (as recorded in her diary, Divine Mercy in my Soul) that He is giving us a vessel with which we can come to that fountain. In His words:
I am offering people a vessel with which they are to keep coming for graces to the fountain of mercy. That vessel is this image with the signature: Jesus, I trust in You (Diary, 327).
There are several forms of the image painted by different artists. It doesn’t really matter which one you use in your devotion. Just choose the one you’re drawn to. As our Lord told Saint Faustina when she complained that none of the images came close to portraying Jesus in all His beauty:
Not in the beauty of the color, nor of the brush lies the greatness of this image, but in My grace (Diary, 313).
The image is only a vehicle for God’s grace and only if we venerate it with trust in His mercy. If we thought the image itself had some magical power, we would be committing the sin of idolatry and that is certainly not what Jesus is asking us to do.
About the Feast of Divine Mercy:
The Feast of Mercy emerged from My very depths of tenderness. It is My desire that it be solemnly celebrated on the first Sunday after Easter. Mankind will not have peace until it turns to the Fount of My mercy (Diary, 699).
On the day of the Feast:
…are opened all the floodgates through which graces flow. Let no soul fear to draw near to Me, though its sins be as scarlet…My mercy is so great that no mind, be it of man or of angel, will be able to fathom it throughout all eternity (Diary 699).
And in the words of Pope Benedict XVI:
Have faith, he tells us, in Divine Mercy! Become day after day men and women of God’s mercy. Mercy is the garment of light which the Lord has given to us in Baptism. We must not allow this light to be extinguished; on the contrary, it must grow within us every day and thus bring to the world God’s glad tidings. From the Pope Benedict XVI’s Divine Mercy Mandate by David Came.
Read more about the Divine Mercy, the Message, The Devotion, the Image.