Children are capable, of course, of
literary belief, when the story-maker's art is good enough to produce it. That state of mind has been called "willing suspension of disbelief." But this does not seem to me a good description of what happens. What really happens is that the story-maker proves a successful "sub-creator." He makes a Secondary World which your mind can enter. Inside it, what he relates is "true": it accords with the laws of that world. You therefore believe it, while you are, as it were, inside. The moment disbelief arises, the spell is broken; the magic, or rather art, has failed. You are then out in the Primary World again, looking at the little abortive Secondary World from the outside. If you are obliged, by kindliness or circumstances, to stay, then disbelief must be suspended (or stifled), otherwise listening or looking would become intolerable. But this suspension of disbelief is a substitute for the genuine thing, a subterfuge we use when condescending to games or make-believe, or when trying (more or less willingly) to find what virtue we can in the work of an art that has for us failed.
[...]The mental power of image-making is one thing, or aspect; and it should appropriately be called Imagination. The perception of the image, the grasp of its implications, and the control, which are necessary to a successful expression, may vary in vividness and strength: but this is a difference of degree in Imagination, not a difference in kind. The achievement of the expression, which gives (or seems to give) "the inner consistency of reality," [that is, which commands or induces Secondary Belief] is indeed another thing, or aspect, needing another name: Art, the operative link between Imagination and the final result, Sub-creation.
_____________________