Operation Mindfuck or OM is an important practice in the Discordian religion. The concept was developed by Kerry Thornley and Robert Anton Wilson in 1968 and given its name by Wilson and Robert Shea in The Illuminatus! Trilogy. It is most often manifested as a decentralized campaign of civil disobedience, activism, art movements, especially performance art and guerrilla art, culture jamming, graffiti and other vandalism, practical jokes, hoaxes, reality hacking, chaos magic, words of power, and anything else that is believed to bring about social change through disrupting paradigms and thus forcing the victim to question the parameters of his or her reality tunnel.