Columbia subject headings:
Mysticism--England.
Mysticism--History--Middle Ages, 600-1500.
Harvard subject headings:
Mysticism--England--History--Congresses.
Princeton subject headings:
England--Church history--1066-1485--Congresses.
English literature--Middle English, 1100-1500--History and criticism--Congresses.
Mysticism in literature--Congresses.
Mysticism--England--History--Congresses.
Mysticism--History--Middle Ages, 600-1500--Congresses.