Sister Faustina was a young, uneducated nun in a convent of the Congregation of Sisters of Our Lady of Mercy in Poland during the 1930s.  She came from a poor family that struggled during the years of World War I.  She had only three years of simple education, so hers were the humblest tasks in the convent, usually in the kitchen or garden.  However, she received extraordinary revelations — or messages — from our Lord Jesus.  Jesus asked Sr. Faustina to record these experiences, which she compiled into notebooks.  These notebooks are known today as the Diary of Saint Maria Faustina Kowalska, and the words contained within are God's loving message of Divine Mercy.

Though the Divine Mercy message is not new to the teachings of the Church, Sr. Faustina's Diary sparked a great movement, and a strong and significant focus on the mercy of Christ.  Saint John Paul II canonized Sr. Faustina in 2000 making her the "first saint of the new millennium."  Speaking of Sr. Faustina and the importance of the message contained in her Diary, the Pope call her "the great apostle of Divine Mercy in our time."

Today, we continue to rely of St. Faustina as a constant reminder of the message to trust in Jesus' endless mercy, and to live life mercifully toward others.  We also turn to her in prayer and request her intercession to our merciful Savior on our behalf.  

Sr. Faustina Diary 

The Message of the Divine Mercy that Sr. Faustina received from the Lord was not only directed toward her personal growth in faith but also toward the good of the people. With the command of our Lord to paint an image according to the pattern that Sr. Faustina had seen, came also a request to have this image venerated, first in the Sisters' chapel, and then throughout the world. The same is true with the revelations of the Chaplet. The Lord requested that this Chaplet be said not only by Sr. Faustina, but by others: "Encourage souls to say the Chaplet that I have given you."

The same is true of the revelation of the Feast of Mercy. "The Feast of Mercy emerged from my very depths of tenderness. It is my desire that it solemnly be celebrated on the first Sunday after Easter. Mankind will not have peace until it turns to the fount of My Mercy."

These requests of the Lord given to Sr. Faustina between 1931 and 1938 can be considered the beginning of the Divine Mercy Message and Devotion in the new forms.

Through the efforts of Sr. Faustina’s spiritual directors, Fr. Michael Sopocko, and Fr. Joseph Andrasz, SJ, and others — including the Marians of the Immaculate Conception — this message began to spread throughout the world.

However, it is important to remember that this message of The Divine Mercy, revealed to St. Faustina and to our present generation is not new. It is a powerful reminder of who God is and has been from the very beginning. This truth that God is in His very nature Love and Mercy Itself, is given to us by our Judeo-Christian faith and God’s self-revelation. The veil that has hidden the mystery of God from eternity was lifted by God Himself. In His goodness and love God chose to reveal Himself to us, His creatures, and to make known His eternal plan of salvation. This He had done partly through the Old Testament Patriarchs, Moses and the Prophets, and fully through His only Son, our Lord Jesus Christ. In the person of Jesus Christ, conceived through power of the Holy Spirit and born of the Virgin Mary, the unseen God was made visible.