I Ching

I Ching was an ancient Chinese book of philosophy, accessed by random samplings that affected the broad flow of the material universe. The I Ching methodology casted doubt on the value of normal causalistic procedures. One traditional method of consulting it was the tossing of coins.

It was recorded in the data bank of K9 Mark II. It was known to the Fourth Doctor, who claimed to apply its philosophy, and Romana, who labelled it as a superstition. Adric tried it, under K9's supervision, resulting in the Hexagram 9 (Hsiao Ch"u, "The Taming Power of the Small"): "If you are sincere, blood vanishes and fear gives way.". (TV: Warriors' Gate)