Columbia subject headings:
Asceticism--Orthodox Eastern Church.
Barsanuphius, Saint, active 6th century--Correspondence.
Barsanuphius, Saint, active 6th century. Biblos psychōphelestatē periechousa apokriseis.
Christian saints--Palestine--Correspondence.
Hermits.
John, the Prophet, Saint--Correspondence.
Monastic and religious life.
Monks--Palestine--Correspondence.
Harvard subject headings:
Asceticism--Orthodox Eastern Church.
Monastic and religious life.
Spiritual life--Orthodox Eastern Church
Princeton subject headings:
Barsanuphius, Saint, active 6th century. Biblos psychōphelestatē periechousa apokriseis.
Christian saints--Palestine--Correspondence.
Monks--Palestine--Correspondence.