What is a GuaCi

《The I ching", behind each of the sixty-four hexagrams divination, have used to explain the hexagrams meaning "GuaCi", also known as "like".The meaning of "like" is refers to a kind of the beast has sharp teeth, long stretched out is the meaning of "broken".That is to say, the so-called GuaCi, is actually to each of the hexagrams explanation and inference, is the result of divination.King wen of zhou fu bagua deduction into sixty-four hexagrams, also wrote GuaCi.