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Official Site: Frank Herbert

The Bene Gesserit ( , ) are a key social, religious, and political force in Frank Herbert's science fiction Dune universe. The group is described as an exclusive sisterhood whose members train their bodies and minds through years of physical and mental conditioning to obtain superhuman powers and abilities that can easily seem magical to outsiders. Acolytes who have acquired the breadth of Bene Gesserit abilities are called Reverend Mothers within the organization's ranks. Some of these fictional powers are analyzed and deconstructed from a real world scientific perspective in the book The Science of Dune (2008).

Sometimes called "witches" due to their secretive nature and misunderstood powers, the Bene Gesserit are loyal only to themselves. However, to attain their goals and avoid outside interference, they often screen themselves with the illusion of being loyal to other groups or individuals. Their every move is calculated toward an end result. As the skills of a Bene Gesserit are as desirable as an alliance with the Sisterhood itself, they are able to charge a fee to school the females from Great Houses, and install some of their initiates as wives and concubines to their advantage. In 1965's Dune, the Princess Irulan writes (via epigraph):

In Frank Herbert's 1965 novel Dune, the Bene Gesserit are a secretive matriarchal order who have achieved somewhat superhuman abilities through physical and mental conditioning and the use of the drug melange. Under the guise of humbly "serving" the Empire, the Sisterhood is in fact a major power in the universe, using its many areas of influence to subtly guide mankind along the path of their own plan for humanity's future. Herbert notes that over 10,000 years before the events of Dune, in the chaotic time after the Butlerian Jihad and before the unveiling of the Orange Catholic Bible, the Bene Gesserit "consolidated their hold upon the sorceresses, explored the subtle narcotics, developed training and conceived the , that black arm of superstition. But it is also the period that saw the composing of the litany against fear and the assembly of the Azhar Book, that bibliographic marvel that preserves the great secrets of the most ancient faiths."

Millennia later in Dune, the Bene Gesserit base of power is the Mother School on the planet Wallach IX, whose graduates are fit mates for Emperors, and whose specially-trained can detect falsehood. But beyond the outer virtues of poise, self-control, and diplomacy, Bene Gesserit training includes superior combat skills and precise physiological control that grants them direct control over conception and embryotic sex determination, ageing, and even the ability to render poison harmless within their bodies. The Bene Gesserit power of allows them to control others by merely modulating their vocal tones. Sisters who survive a ritualized poisoning known as the spice agony achieve increased awareness and abilities through access to , and are subsequently known as Reverend Mothers. Every member of the Bene Gesserit is conditioned into singular loyalty to the order and its goals with allegiances to even family being secondary, and no goal is more paramount than the Sisterhood's large-scale . It aims to create a superbeing that can tap into abilities even the Bene Gesserit cannot, a being whom they can use in order to gain more direct control over the universe. To this end, the Bene Gesserit have subtly manipulated bloodlines for generations, using breeding sisters to "collect" the genes they require.

Bene Gesserit Reverend Mothers has not been a contender in any CBUB matches.