Chinese Taoist divination is based on an ancient shamanistic tradition in which a tortoise shell was placed on a fire until the shell cracked in an array of patterns. These lines would then allow the Taoist priest to divine the conditions of Heaven and Earth. Gradually such patterns became codified into the 64 hexagrams of the I-Ching, a book of Chinese divination. 64 is a significant number in numerology as it relates to many sequences and patterns in nature, not least the number of codons in the human DNA.
Lee Chung Feng, the personal prophet and military counsel of the first emperor of the Tang Dynasty (765 AD) is one of the most accurate prophets who ever existed in China. He was a famous I-Ching and astrology master. He wrote a book which has 60 poems and cartoon drawings. Each poem has a drawing and a prophecy pertaining to a Chinese historical event that will occur according to an historical timeline.