Ascetic Life and Healings
The principal feature of Gregory's life preserved in the synaxarion is his severe fast. Sources relate that uncooked grass was his food all his life, a discipline that placed him among the most austere of the cave-dwelling ascetics of the Lavra.
By tradition the same simple food became a means of healing: those who came to him in sickness received a portion of his grass and were cured. An examination of his relics is reported to have indicated that he died between the ages of forty and fifty.