As a missionary, Father Louis Marie de Montfort found himself in a boat going up the River Seine packed with at least 200 people, who were joking coarsely and singing lustful songs. Hardly had he spent a few moments in the company of these shady horse dealers and fishmongers, when Father de Montfort adjusted his crucifix to the end of his walking stick. He then prostrated himself on the floor of the boat and exclaimed, "Let those who love Jesus Christ join me in prayer." His companions shrugged their shoulders and sniggered at this invitation. So, turning to Brother Nicholas, the Saint ordered, "On your knees and we shall recite our Rosary!" Under an avalanche of gibes, the two men, their heads bared and their faces solemn, recited the Ave Marias. After the first Rosary, the priest stood up and in a soft voice again invited the assistance to join him in prayer. Nobody moved, but the booing calmed down as the prayers began. After the invocation "Holy Mary, Mother of God, pray for us sinners" had been repeated several times, the face of Father de Montfort was transfigured. When the next Rosary had been completed, there was such earnest supplication in the expression on the Saint's face, and his voice had taken on such sweetness and authority that, when he entreated his companions to recite a third Rosary with him, everyone fell on their knees and repeated the sweet words, which they had forgotten since childhood. The holy priest could only be delighted: from a brothel of obscenities he had made a Marian shrine. On lips accustomed to saying blasphemies, he had brought back the name of Mary.