There, our Self-seeing is a communion with the Self, restored to purity. No doubt we should not speak of "seeing," but, instead of [speaking of] "seen" and "seer," speak boldly of a simple unity. For in this seeing we neither see, nor distinguish, nor are there, two. The man is changed, no longer himself nor belonging to himself; he is merged with the Supreme, sunken into It, one with It; it is only in separation that duality exists. This is why the vision baffles telling; for how could a man bring back tidings of the Supreme as something separate from himself when he has seen It as one with himself?

(Plotinus)