Orange Catholic Bible

The Orange Catholic Bible (abbreviated to O. C. Bible or OCB) is a fictional book from the Dune universe created by Frank Herbert. Created in the wake of the crusade against thinking machines Herbert calls the Butlerian Jihad, the Orange Catholic Bible is the primary orthodox religious text in the Dune universe and is described thus in the glossary of the 1965 novel Dune:

ORANGE CATHOLIC BIBLE: the "Accumulated Book," the religious text produced by the Commission of Ecumenical Translators. It contains elements of most ancient religions, including the Maometh Saari, Mahayana Christianity, Zensunni Catholicism and Buddhislamic traditions. Its supreme commandment is considered to be: "Thou shalt not disfigure the soul."

In Dune, Dr. Yueh gives Paul Atreides his copy of the Orange Catholic Bible during their initial trip to Arrakis. This copy is a space-traveler's miniaturized edition of the book, set in tiny print on fragile pages made from "filament paper." It is described as "black, oblong, no larger than the end of Paul's thumb" but contains eighteen hundred pages. Yueh instructs Paul in its use:

It has its own magnifier and electrostatic charge system ... The book is held closed by the charge, which forces against spring-locked covers. You press the edge — thus, and the pages you've selected repel each other and the book opens ... the charge moves ahead one page at a time as you read. Never touch the actual pages with your fingers. The filament tissue is too delicate.

The appendix to Dune also notes that the chief commandment of the Butlerian Jihad remains in the Orange Catholic Bible as "Thou shalt not make a machine in the likeness of a human mind." It is further explained in the Dune appendix that the passage "Paradise on my right. Hell on my left, and the Angel of Death behind" describes human life as a journey across a narrow bridge.

...
Wikipedia