Vincent de Paul In April 1830, the remains of
Vincent de Paul were translated to the Vincentian church in Paris. The solemnities included a
novena. On three successive evenings, upon returning from the church to the Rue du Bac, Catherine reportedly experienced, in
the convent chapel, a vision of what she took to be the heart of St. Vincent above a shrine containing a relic from his right arm. Each time the heart appeared a different color: white, red, and black. She interpreted this to mean that the Vincentian communities would prosper, and that there would be a change of government. The convent chaplain advised her to forget the matter.
The Virgin Mary Labouré stated that on 19 July 1830, the eve of the feast of St. Vincent de Paul, she woke up after hearing the voice of a child calling her to the chapel, where she heard the Virgin Mary say to her, "God wishes to charge you with a mission. You will be contradicted, but do not fear; you will have the grace to do what is necessary. Tell your spiritual director all that passes within you. Times are evil in France and in the world". Labouré did so, and after two years of investigation and observation of her normal daily behavior, the priest took the information to his archbishop without revealing her identity. The request was approved and the design of the medallions was commissioned through French goldsmith
Adrien Vachette. They proved to be exceedingly popular—the
Miraculous Medal was quickly adopted by millions of the Catholic faithful. It also played an important role in the proclamation by Pope Pius IX of the
Immaculate Conception on 8 December 1854. The dogma of the
Immaculate Conception had not yet been officially promulgated, but the medal, with its "conceived without sin" slogan, was influential in popular approval of the idea. File:Catherine Labouré.jpg|Portrait of Sister Catherine at the time of the apparitions File:Paris - Maison des Filles de la Charité - 136-140 rue du Bac - 005bis.jpg|Convent of the Sisters of Charity, 136-140 Rue du Bac, Paris File:Chapelle de la Médaille Miraculeuse @ Paris (33392223870).jpg|Detail from the
Chapel of Our Lady of the Miraculous Medal in Paris ==Later life and service to the poor and elderly==