There was once a queer old man who lived in a cave, where he had sought refuge from the noise of the villages. He was reputed to be a sorcerer, and therefore he had disciples who hoped to learn the art of sorcery from him. But he himself was not thinking of any such thing. He was only seeking to know what it was that he did not know, but which, he felt certain, was always happening.
After meditating for a very long time on that which is beyond meditation, he saw no other way of escape from his predicament than to take a piece of red chalk and draw all kinds of diagrams on the walls of his cave, in order to find out what that which he did not know might look like. After many attempts he hit on the circle. “That’s right,” he felt, “and now for a quadrangle inside it!”-which made it better still.
His disciples were curious; but all they could make out was that the old man was up to something, and they would have given anything to know what he was doing. But when they asked him: “What are you doing there?” he made no reply. Then they discovered the diagrams on the wall and said: “That’s it!”-and they all imitated the diagrams. But in so doing they turned the whole process upside down, without noticing it: they anticipated the result in the hope of making the process repeat itself which had led to that result.
This is how it happened then and how it still happens today.C.G. Jung, Four Archetypes, page 63