St. Philip formed a confraternity with other laymen to minister to pilgrims who came to Rome without food or shelter. The spiritual director of the confraternity convinced Philip that he could do even more work as a priest. After receiving instruction from this priest, Philip was ordained in 1551. At his new home, the church of San Girolamo, he learned to love to hear confessions. Young men especially found in him the wisdom and direction they needed to grow spiritually. But Philip began to realize that these young men needed something more than absolution; they needed guidance during their daily lives. So Philip began to ask the young men to come by in the early afternoon when they would discuss spiritual readings and then stay for prayer in the evening. The numbers of the men who attended these meetings grew rapidly. To handle the growth, Philip and a fellow priest Buonsignore Cacciaguerra gave a more formal structure to the meetings and built a room called the Oratory to hold them in.