Had it not been for the Holy Father's efforts on her behalf, Faustina and her notebooks may well have disappeared into obscurity. Initially branded "hysterical" and "deceived" by local clergy, in 1938 she died of tuberculosis at the age of thirty-three. However, God had not finished the work He had begun with Sister Faustina, nor did the men who had silenced her foil His plans.
Soon after his appointment, Archbishop Wojtyla approached Jesuit theologian Ignatius Rozycki and asked him to review Sister Faustina's writings. Initially skeptical, Fr. Rozycki spent ten years in an exhaustive study of the Sister and her notebooks, which the Vatican had condemned in 1958. Father Rozycki's findings were published and the prohibition lifted in 1978.Beatified in 1992, St. Faustina was canonized in the year 2000; on the latter occasion Pope John Paul II declared the first Sunday after Easter "Divine Mercy Sunday."