(often spelled as I Jing, Yi Ching, Yi King, or Yi Jing; also called "Book of Changes" or "Classic of Changes")
is the oldest of the Chinese classic texts.
A symbol system designed to identify order in what seem like chance events,
it describes an ancient system of cosmology and philosophy that is at the heart of Chinese cultural beliefs.
The philosophy centers on the ideas of the dynamic balance of opposites, the evolution of events as a process, and acceptance of the inevitability of change .
In Western cultures, the I Ching is regarded by some as simply a system of divination; many believe it expresses the wisdom and philosophy of ancient China.
The book consists of a series of symbols, rules for manipulating these symbols, poems, and commentary.