Columbia subject headings:
Mysticism in literature.
Spee, Friedrich von, 1591-1635--Philosophy.
Spee, Friedrich von, 1591-1635--Religion.
Harvard subject headings:
Mystics--Biography.
Spee, Friedrich von, 1591-1635.
Princeton subject headings:
Mysticism.
Spee, Friedrich von, 1591-1635--Philosophy.
Spee, Friedrich von, 1591-1635--Religion.