Columbia subject headings:
Private revelations--Early works to 1800.
Spiritual life--Catholic Church--Early works to 1800.
Spiritual life--Christianity--History of doctrines--Middle Ages, 600-1500.
Visions--Early works to 1800.
Harvard subject headings:
Private revelations--Early works to 1800.
Spiritual life--Catholic Church--Early works to 1800.
Spiritual life--Christianity--History of doctrines--Middle Ages, 600-1500
Visions--Early works to 1800
Princeton subject headings:
Private revelations--Early works to 1800.
Spiritual life--Catholic Church--Early works to 1800.
Visions--Early works to 1800.