In my continued reflections on the difficult, weighty, and beautiful doctrine of the Trinity, I looked a bit tonight at the fourth and final section of C.S. Lewis’ Mere Christianity, entitled “Beyond Personality: Or First Steps in the Doctrine of the Trinity.” Lewis is a master of stating profound truths in simple and accessible ways. I found several helpful quotes that helped me think through more clearly some of the ideas I had hit upon in my first two posts on this topic. I will reproduce some of the best ones here.
From Chapter 2, “The Three-Personal God:”
“You know that in space you can move in three ways – to left or right, backwards or forwards, up or down. Every direction is either one of these three or a compromise between them. They are called the three Dimensions. Now notice this. If you are using only one dimension, you could draw only a straight line. If you are using two; you could draw a figure: say, a square. And a square is made up of four straight lines. Now a step further. If you have three dimensions, you can then build what we call a solid body: say, a cube – a thing like a dice or a lump of sugar. And a cube is made up of six squares.
Do you see the point? A world of one dimension would be a straight line. In a two-dimensional world, you still get straight lines, but many lines make one figure. In a three-dimensional world, you still get figures but many figures make one solid body. In other words, as you advance to more real and more complicated levels, you do not leave behind you the things you found on the simpler levels: you still have them, but combined in new ways – in ways you could not imagine if you knew only the simpler levels.
Now the Christian account of God involves just the same principle. The human level is a simple and rather empty level. On the human level one person is one being, and any two persons are two separate beings – just as, in two dimensions (say on a flat sheet of paper) one square is one figure, and any two squares are two separate figures. On the Divine level you still find personalities; but up there you find them combined in new ways which we, who do not live on that level, cannot imagine. In God’s dimension, so to speak, you find a being who is three Persons while remaining one Being, just as a cube is six squares while remaining one cube. Of course we cannot fully conceive a Being like that: just as, if we were so made that we perceived only two dimensions in space we could never properly imagine a cube. But we can get a sort of faint notion of it. And when we do, we are then, for the first time in our lives, getting some positive idea, however faint, of something super-personal – something more than a person. It is something we could never have guessed, and yet, once we have been told, one almost feels one ought to have been able to guess it because it fits in so well with all the things we know already.”
And later in that chapter, to conclude it:
“If Christianity was something we were making up, of course we could make it easier. But it is not. We cannot compete, in simplicity, with people who are inventing religions. How could we? We are dealing with Fact. Of course anyone can be simple if he has no facts to bother about.”
From Chapter 4, “Good Infection:”
“I said a few pages back that God is a Being which contains three Persons while remaining one Being, just as a cube contains six squares while remaining one body. But as soon as I begin trying to explain how these Persons are connected I have to use words which make it sound as if one of them was there before the others. The First Person is called the Father and the Second the Son. We say that the First begets or produces the second; we call it begetting, not making, because what He produces is of the same kind as Himself….
Perhaps the best way to think of it is this. I asked you just now to imagine those two books, and probably most of you did. That is, you made an act of imagination and as a result you had a mental picture. Quite obviously your act of imagining was the cause and the mental picture the result. But that does not mean that you first did the imagining and then got the picture. The moment you did it, the picture was there. Your will was keeping the picture before you all the time. Yet that act of will and the picture began at exactly the same moment and ended at the same moment. If there were a Being who had always existed and had always been imagining one thing, his act would always have been producing a mental picture; but the picture would be just as eternal as the act.
In the same way we must think of the Son always, so to speak, streaming forth from the Father, like light from a lamp, or heat from a fire, or thoughts from a mind. He is the self-expression of the Father-what the Father has to say. And there never was a time when He was not saying it…. Naturally God knows how to describe Himself much better than we know how to describe Him. He knows that Father and Son is more like the relation between the First and Second Persons than anything else we can think of. Much the most important thing to know is that it is a relation of love. The Father delights in His Son; the Son looks up to His Father…. Christians believe that the living, dynamic activity of love has been going on in God forever and has created everything else.
And that, by the way, is perhaps the most important difference between Christian and all other religions: that in Christianity God is not a static thing – not even a person – but a dynamic, pulsating activity, a life, almost a kind of drama. Almost, if you will not think me irreverent, a kind of dance. The union between the Father and the Son is such a live concrete thing that this union itself is also a Person. I know this is almost inconceivable, but look at it thus. You know that among human beings, when they get together in a family, or a club, or a trade union, people talk about the ‘spirit’ of that family, or club, or trade union. They talk about its ‘spirit’ because the individual members, when they are together. Do really develop particular ways of talking and behaving which they would not have if they were apart.’ It is as if a sort of communal personality came into existence. Of course, it is not a real person: it is only rather like a person. But that is just one of the differences between God and us. What grows out of the joint life of the Father and Son is a real Person, is in fact the Third of the three Persons who are God. This third Person is called, in technical language, the Holy Ghost or the ‘spirit’ of God….
And now, what does it all matter? It matters more than anything else in the world. The whole dance, or drama, or pattern of this three-Personal life is to be played out in each one of us: or (putting it the other way round) each one of us has got to enter that pattern, take his place in that dance. There is no other way to the happiness for which we were made. Good things as well as bad, you know, are caught by a kind of infection. If you want to get warm you must stand near the fire: if you want to be wet you must get into the water. If you want joy, power, peace, eternal life, you must get close to, or even into, the thing that has them. They are not a sort of prizes which God could, if He chose, just hand out to anyone. They are a great fountain of energy and beauty spurting up at the very centre of reality. If you are close to it, the spray will wet you: if you are not, you will remain dry. Once a man is united to God, how could he not live forever? Once a man is separated from God, what can he do but wither and die?”