Feast: October 5, 1938 (day of her death).
Born in Poland, the oldest daughter of poor Polish farmers who named her named Helen Kowalska. Had had only three years of education. Worked as a domestic for several years.
After being rejected by other communities, she entered the Congregation of Sisters of Our Lady of Mercy in 1925. Was assigned the humblest of tasks in the convent, usually in the kitchen or the vegetable garden or as a porter.
Sr. Faustina received apparitions of Jesus and the Blessed Mother. They began when she was a little girl and she thought everybody could see Jesus and Mary like she did. In the convent, Jesus dictated as to a secretary.
On February 22, 1931, Our Lord and Savior Jesus Christ appeared to her and gave her the message of Mercy for all mankind. Saint Faustina wrote in her diary that day date:
"In the evening, when I was in my cell, I became aware of the Lord Jesus clothed in a white garment. One hand was raised in blessing, the other was touching the garment at the breast. From the opening of the garment at the breast there came forth two large rays, one red and the other pale. In silence I gazed intently at the Lord; my soul was overwhelmed with fear, but also with great joy. After a while Jesus said to me, 'paint an image according to the pattern you see, with the inscription: Jesus, I trust in You.'"
Some time later, Our Lord told her: "The pale ray stands for the Water which makes souls righteous; the red ray stands for the Blood which is the life of souls. These two rays issued forth from the depths of My most tender Mercy at that time when My agonizing Heart was opened by a lance on the Cross....Fortunate is the one who will dwell in their shelter, for the just hand of God shall not lay hold of him.".
Died in the convent in Cracow, Poland.