As a monk, he was known for his very severe asceticism. Against his will, he was made Bishop of Zahum, where he served his flock faithfully for many years, "keeping it from the cruelty of the Turks and the guile of the Latins" (Prologue). When his monastery was destroyed by the Turks he moved to Ostrog, where he reposed. His body has remained whole, incorrupt, healing and wonderworking to this day. Innumerable miracles have been worked at his grave; both Christians and Muslims seek out his relics for healing from sicknesses and sufferings.

(A story heard from a parishioner at St Basil of Ostrog Church in Illinois: while the Saint's relics remain intact, reputedly his shoes wear out from time to time and need to be replaced.)