What is meant by prepared divination

Prepared divination is"The I ching"In the sixty-four hexagrams hexagrams 16.It is piled up different hexagrams, under the terms of is, on the terms is a shock.He sticks on behalf of the earth, and the symbol of the soft;Shake hexagrams on behalf of the ray, symbol of thunder, and the earth rejuvenation.So, and mean, do things to comply, so as to smooth and harmonious.