Nothing can show better than this brief exposition how closely Coleridge in his theology clung to a base of spiritual experience, and sought to measure even the most abstruse Christian mysteries by facts. The same thing may be shown by referring to his doctrine of the Trinity, which has been supposed the most transcendental and, so to speak, “Neo-Platonist” of all his doctrines. But truly speaking his Trinitarianism, like his doctrine of Election, is a moral rather than a speculative truth. The Trinitarian idea was, indeed, true to him notionally. The full analysis of the notion “God” seemed to him to involve it. “I find a certain notion in my mind, and say that is what I understand by the term God. From books and conversation I find that the learned generally connect the same notion with the same word. I then apply the rules laid down by the masters of logic for the involution and evolution of terms, and prove (to as many as agree with my premisses) that the notion 'God' involves the notion 'Trinity,'” So he argued, and many times recurred to the same Transcendental analysis. But the truer and more urgent spiritual basis of the doctrine of the Trinity, even to his own mind, was not its notional but its moral necessity. Christ could only be a Saviour as being Divine. Salvation is a Divine work. “The idea of redemption involves belief in the Divinity of our Lord. And our Lord's Divinity again involves the Trinitarian idea, because in and through this idea alone the Divinity of Christ can be received without breach of faith in the Unity of the Godhead.” In other words, the best evidence of the doctrine of the Trinity, is the compulsion of the spiritual conscience which demands a Divine Saviour; and only in and through the great idea of Trinity in Unity does this demand become consistent with Christian Monotheism.[8] These doctrines are merely used in illustration, as they are by Coleridge himself in his _Aids to Reflection_. But nothing can show in a stronger light the general character of the change which he wrought in the conception of Christianity. From being a mere traditional creed, with Anglican and Evangelical, and it may be added Unitarian alike, it became a living expression of the spiritual consciousness. In a sense, of course, it had always been so. The Evangelical made much of its living power, but only in a practical and not in a rational sense. It is the distinction of Coleridge to have once more in his age made Christian doctrine alive to the reason as well as the conscience—tenable as a philosophy as well as an evangel. And this he did by interpreting Christianity in the light of our moral and spiritual life. There are aspects of Christian truth beyond us—_Exeunt in mysteria_. But all Christian truth must have vital touch with our spiritual being, and be so far at least capable of being rendered in its terms, or, in other words, be conformable to reason.