Today begins the Divine Mercy Novena which is a powerful nine day set of prayers beginning on Good Friday and ending on Divine Mercy Sunday (the second Sunday of Easter). Jesus appeared to St. Faustina on several occasions as she relates in her diary. Regarding the novena, she wrote that Jesus revealed to her:
On each day of the novena you will bring to My Heart a different group of souls and you will immerse them in this ocean of My mercy… On each day you will beg My Father, on the strength of My passion, for the graces for these souls. By this novena I will grant every possible grace to souls.
To participate in this wonderful practice, you can visit this Divine Mercy Novena page (also used as a source for the above quote). For more information on the chaplet associated with St. Faustina and the novena, you can visit this page on the Divine Mercy Chaplet.
I participated in the chaplet and novena last year and can say that it is a wonderful spiritual practice. I am excited about doing it again this year!