 In the Cappadocian school of thought (Saint Basil, Saint Gregory of Nyssa, and Saint Gregory Nazianzus) (350–400AD), theoria is the experience of the highest or absolute truth, realized by complete union with God.It is entering the 'Cloud of Unknowing', which is beyond rational understanding, and can be embraced only in love of God (Agape or Awe).The Cappadocian fathers went beyond the intellectual contemplation of the Alexandrian fathers.