Meister Eckhart (c. A.D. 1260-1327) Dominican priest and mystical theologian, the most prominent figure in German mysticismIs a form of religious experience that is found in one form or another in nearly all religious traditions. In early Christianity, Pseudo Dionysius ref... more, whose teachings were under investigation for heresyComes from a Greek term meaning “sect,” and was used by the early Church theologians to identify doctrines that they rejected as not orthodox. The... more at the time of his death.