Columbia subject headings:
Mysticism in literature.
Mysticism--History--Middle Ages, 600-1500.
Rhetoric--Religious aspects.
Harvard subject headings:
Mysticism in literature.
Mysticism--History--Middle Ages, 600-1500
Rhetoric--Religious aspects
Princeton subject headings:
Mysticism in literature.
Mysticism--History--Middle Ages, 600-1500.
Rhetoric--Religious aspects.