As an important component of Chinese traditional culture, the I Ching's influence throughout history has been profound. The I Ching (Yì Jīng), or Classic of Changes, which dates from over 3,000 years ago, is believed to be one of the world's oldest books. The two major branches of Chinese philosophy, Confucianism and Taoism have common roots in the I Ching.
From its mythological origins in prehistory (see Fu Xi) and the earliest dates of recorded history in China, the I Ching has been added to by a succession of philosophers, scholars and rulers. Thus, it reflects a thread of thinking and a common cosmology that have been passed through successive generations. In addition to the I Ching's broadly recognized influence on Confucianism and Taoism, it has been shown to have influenced Chinese Buddhism. Fazang, patriarch of the Huayan school, is believed to have drawn on a mode of thought derived from the I Ching.
One of the earliest versions of the I Ching (called, Zhou I, or Changes of Zhou) was the oracle of the Zhou. It played a role in their overthrow of the Shang dynasty by Zhou King Wu in 1070 BCE. An account of Wu's conquest tells of a solar eclipse believed by the King to be an omen from Heaven to march against the Shang. This account has been matched with a solar eclipse that occurred on June 20, 1070 BCE. Thus, the earliest layer of the I Ching has been shown to preserve a hidden history that went undetected for three millennia. The Zhou Yi has been called one of the most important sources of Chinese culture. It has influenced fields as varied as mathematics, science, medicine, martial arts, philosophy, history, literature, art, ethics, military affairs and religion.
Joseph Campbell describes the I Ching as "an encyclopedia of oracles, based on a mythic view of the universe that is fundamental to all Chinese thought."
Confucius was fascinated by the I Ching and kept a copy in the form of "a set of bamboo tablets fastened by a leather thong, [which] was consulted so often that the binding had to be replaced three times. [Confucius] said that if he had fifty years to spare, he would devote them to the I Ching." The ten commentaries of Confucius, (or Ten Wings), transformed the I Ching from a divination text into a "philosophical masterpiece". It was this form of the I Ching that inspired the Taoists, Chuang Tzu and Lao Tzu. It has influenced Confucians and other philosophers and scientists ever since.
Prior to the Tokugawa period (1603–1868 CE) in Japan, the Book of Changes was little known and used mostly for divination until Buddhist monks popularized the Chinese classic for its philosophical, cultural and political merits in other literate groups such as the samurai. The Hagakure, a collection of commentaries on the Way of the Warrior, cautions against mistaking it for a work of divination.
Michael Nylan notes the considerable influence of the I Ching on intellectuals in Europe and America. It is the most familiar of the five Chinese classics, and without doubt, the best-known Chinese book.
German mathematician and philosopher Gottfried Wilhelm Leibniz was keenly interested in the I Ching, and translated I-Ching binary system into modern binary system.
Author Douglas Adams's The Long Dark Tea-Time of the Soul features an I Ching pocket calculator that represents anything greater than four as "A Suffusion of Yellow".
British poet Alan Baker based his prose-poem sequence "The Book of Random Access" (pub. 2011) on the 64 Hexagrams of the I Ching.
When Danish Physicist Niels Bohr was awarded Denmark's highest honor and the opportunity to create a family coat of arms, he chose the yin-yang symbol, and Latin motto contraria sunt complementa, "opposites are complementary", a nod to his Principle of Complementarity.
The philosopher and novelist Will Buckingham has used the I Ching extensively, describing it as an 'uncertainty machine'.
Musician and composer John Cage used the I Ching to decide the arrangements of many of his compositions.
Composer Andrew Culver and choreographer Merce Cunningham use the I Ching.
The ABC soap opera Dark Shadows featured yarrow sticks and a copy of the I Ching that allowed characters meditating on the hexagrams to astral travel.
The hip-hop music group Dead Prez refer to the I Ching in several of their songs and in their logo.
Author Philip K. Dick used the I Ching when writing The Man in the High Castle and including it in the story as a theme.
In a 1965 interview, Bob Dylan stated that the book is “the only thing that is amazingly true, period…besides being a great book to believe in, it’s also very fantastic poetry" and in a mid-1970s rendition of his song Idiot Wind he sang “I threw the I-Ching yesterday, it said there might be some thunder at the well.”
The film G.I. Joe uses a red hexagram tattoo on the right forearm for the Storm Shadow ninja clan.
The poet Allen Ginsberg wrote a poem called Consulting I Ching Smoking Pot Listening to the Fugs Sing Blak in 1966.
Musician George Harrison, who composed the Beatles song While My Guitar Gently Weeps, recalls he "picked up a book at random, [the I Ching] opened it, saw "gently weeps", then laid the book down again and started the song".
Author Hermann Hesse's 1943 novel "The Glass Bead Game" is mainly concerned with the principles of the I Ching.
Psychologist Carl Jung wrote a foreword to the Wilhelm–Baynes translation of the I Ching.
The TV series Lost featured the ba gua as in the logo for The Dharma Initiative.
Author Terence McKenna's Novelty Theory and Timewave Zero, were inspired by analysis of the King Wen sequence.
In director Michael Mann's film Collateral, Vincent (Tom Cruise) refers to I Ching as he tries to teach Max (Jamie Foxx) the importance of improvisation.
Photek released a song called Book of Changes in 1994.
The song Chapter 24 from Pink Floyd's first album, The Piper at the Gates of Dawn, written by Syd Barrett, features lyrics adapted from the I Ching.
British author Philip Pullman's book The Amber Spyglass features the I Ching amongst the divination methods used by Dr. Mary Malone to communicate with Dust.
The writer Raymond Queneau had a long-standing fascination with the I Ching.
I Ching is mentioned in the Monty Python song I Like Chinese, written by Eric Idle.
Francophone author Ezechiel Saad and his book Yi King, mythe et histoire delves into the shamanic roots of oracular Chinese thought, and examines the real or legendary bestiary, searching for meaning from psychoanalysis and Western culture.
Author Neal Stephenson's novel Quicksilver, uses hexagrams for encryption keys that allow Eliza to send messages to "Leibniz" from the court of King Louis XIV.
In the late 1960s, the comic book Wonder Woman temporarily changed the title character from a superhero to a secret agent, and placed her under the guidance of an elderly mentor known as "I Ching".
The I Ching is mentioned in Charmed S5E22 'Oh My Goddess (Part 1)'.
