Porphyry's statement that Plotinus achieved union with God four times may be misleading. For he qualified it with the words "during the period I passed with him." Now Plotinus was fifty-nine years old when Porphyry first met him, and died at sixty-six. So seven years is the length of the period referred to. Against this must be set the forty earlier years of spiritual seeking and teaching during which Plotinus must have had other illuminations.
-- Notebooks Category 25: World-Mind in Individual Mind > Chapter 3: The Sage > # 70