He was also very dedicated to the Blessed Mother and the Holy Rosary. He would kneel by his bedside by the age of six and say the entire rosary. When he was twelve he entered a Jesuit college, where in the first year he was entrusted with the care of the infirm and the poor that came to the door asking for alms. Here he began his penances of scourging himself, wearing hairshirts, and very strict fastings. Here he also received his vocation as a priest.
So, St. Louis left for a hospital in Paris where he took care of both the physical and spiritual needs of his patients. One day when coming to dinner he found a dismissal paper on his plate (who knows why). So he left.