A lover of prayer and solitude, Saint Joannicius led the ascetic life in a cave on the Ibar River in eastern Serbia. Later, having established a monastery for the faithful who had gathered around him, he fled deeper into the wilderness of Devich in Kosovo where he lived in complete solitude for many years. There he held off the assaults of the demons who tried in vain to interrupt his ceaseless prayer of the heart. Word eventually came to the Despot of Serbia, George Brankovich (Saint Maksim), who brought his daughter who was mentally ill and possessed by a demon to the hermit, seeking his aide. Saint Joannicius delivered her by his prayer, and her grateful father had a church and monastery built there to thank God for his benefactions through his servant. After his death, the saint’s relics continued to work healings, especially for those tormented by the demons and mental illness.