The Trinity

“He [Augustine] proceeds, in his great treatise [on the Trinity], to expound the doctrine analogically, using again and again the appeal to experience. He says in effect: ‘a Trinitarian structure of being is not a thing incomprehensible or unfamiliar to you; you know of many such within the created universe. There is a trinity of sight, for example: the form seen, the act of vision, and the mental attention which correlates the two. These three, though separable in theory, are inseparably present whenever you use your sight…'” The Mind of the Maker, by Dorothy Sayers