Monastic formation and withdrawal to the wilderness
Born in the city of White Lake (Beloozero), Cyril was tonsured a monk at the monastery of Saint Anthony the Roman in Novgorod, where for six years he passed through various monastic obediences.
After this period of formation he left the monastery and wandered through the wilderness for three years. He eventually settled in a wild region of the Kargopol district and, by an inner prompting that the synaxarion describes as a command from on high, chose Chelma Hill as his permanent dwelling. He spent his first winter there in a cave, afterward building a wooden cell and a chapel.