Keywords: Grail Legends ; Grail Legends ; History and criticism ; Knights and knighthood in literature ; Literature, Medieval History and criticism ; Psychology in literature ; Quests (Expeditions) in literature ; Literatur ; Tiefenpsychologie ; Gralssage ; Gral ; Psychologie ; Gralssage ; Tiefenpsychologie ; Gral ; Psychologie ; Gral ; Literatur