Divine Mercy of Jesus.

From the diary of a young Polish nun, a special devotion
began spreading throughout the world in the 1930s. The
message is nothing new, but is a reminder of what the
Church has always taught through scripture and tradition:
that God is merciful and forgiving and that we, too, must
show mercy and forgiveness. But in the Divine Mercy
devotion, the message takes on a powerful new focus,
calling people to a deeper understanding that Gods love is
unlimited and available to everyone — especially the
greatest sinners.

The message and devotion to Jesus as The Divine Mercy
is based on the writings of Saint Faustina Kowalska, an
uneducated Polish nun who, in obedience to her spiritual
director, wrote a diary of about 600 pages recording the
revelations she received about Gods mercy. Even before
her death in 1938, the devotion to The Divine Mercy had
begun to spread.