At the age of 25, John left his home and became a monk. He lived under the tutelage of a wise hermit and when his master died, John decided to withdraw into a more remote cave on Mount Lycos. There he lived a very strict life, devoting himself to prayer and manual work. People started to visit him, since he was able to perform miracles, heal the sick and read people’s hearts. He died in 394, at the age of 90.