The infernal spirits treated Joseph as their enemy. One night the servant of God was standing before the alter of St. Francis, in the Basilica at Assisi, when he heard the door opened violently and saw a man enter, who advanced so noisily that his feet seemed cased in iron. The saint regarded him closely and saw that, as he approached, the lamps went out, one by one, till finally all were extinguished and the intruder stood at his side in utter darkness. Thereupon the devil, for he it was, furiously attacked Joseph, threw him on the floor, and attempted to strangle him. Joseph, however, invoked St.Francis, and saw him come forth from his tomb and relight with a small candle all the lamps, at the gleam of which the fiend suddenly vanished. By reason of this occurence Joseph gave St. Francis the name "Lamplighter of the Church."