Monastic Life and Asceticism
Moses lived as a monk of the Kiev Caves Monastery and was, in the words of the synaxarion, completely dedicated to God. His remembered ascetic discipline was severe: he wore chains and a heavy copper cross, and his continual and favored labor was psalmody together with the making of innumerable prostrations.
Through this life of unceasing prayer and bodily struggle he is said to have received the gift of working miracles, the source of the title "Wonderworker" by which he is known. No individual miracles are named in the surviving record.