If you take myth and folklore, and these things that speak in symbols, they can be interpreted in so many ways that although the actual image is clear enough, the interpretation is infinitely blurred, a sort of enormous rainbow of every possible colour you could imagine.
Diana Wynne JonesController Borasus sighed with relief. Libraries were not places of danger. It had to be a hoax.
Diana Wynne JonesYou've probably all had those kinds of dreams that are like usual life, except that a lot of things are not the same, and you seem to know the future in them. Well, this is because these other worlds where two things can happen spread out from our world like rainbows, and sort of flow into one another-
Diana Wynne Jones