Columbia subject headings:
Asceticism--History--Early church, ca. 30-600.
Coptic language--Phraseology.
Hallucinations and illusions.
Visions.
Harvard subject headings:
Asceticism--History--Early church, ca. 30-600.
Coptic language--Phraseology.
Hallucinations and illusions.
Visions.
Princeton subject headings:
Asceticism--History--Early church, ca. 30-600.
Coptic language--Phraseology.
Hallucinations and illusions.
Visions.