Behold the Heart which so loved mankind!
My daughter, know that My Heart is mercy itself. From this sea of mercy, graces flow out upon the whole world. No soul that has approached Me has ever gone away unconsoled. All misery gets buried in the depths of My mercy, and every saving and sanctifying grace flows from this fountain. My daughter, I desire that your heart be an abiding place of My mercy. I desire that this mercy flow out upon the whole world through your heart. Let no one who approaches you go away without that trust in My mercy which I so ardently desire for souls.
Our Lord's words to St. Faustina, from The Diary, Book VI
O Blood and Water which gushed forth from the Heart of Jesus as a fount of mercy for us,
I trust in You.
Jesus, meek and humble of heart,
Make our hearts like unto Thine.
Blessed feast day to you and yours!