The 2,500 year old Yi-jing or I Ching, translated as the 'Book of Changes', is an ancient Chinese work of divination and prophesy. Dating from the 4th century BC, it is traditionally consulted by performing complex routines of dropping bundles of dried grass stalks. The particular patterns formed when six stalks are dropped are represented by 64 symbols called hexagrams, which show every possible combination of broken and unbroken stalks. The Book of Changes tells how to ...