St. Maria Faustyna Kowalska, OLM (†1938), also known as Maria Faustyna Kowalska of the Blessed Sacrament, Faustyna popularly spelled "Faustina," was a Polish Catholic religious sister and mystic. Her apparitions of Jesus Christ inspired the Roman Catholic devotion to Divine Mercy and earned her the title of "Secretary of Divine Mercy." Throughout her life, Kowalska reported having visions of Jesus and conversations with him, which she noted in her diary. She was beatified on 18 April 1993 and canonized on 30 April 2000. Her feast day is commemorated on 5 October. The mystic is classified in the liturgy as a virgin and is venerated within the church as the "Apostle of Divine Mercy."