The Bene Gesserit is a psuedo-religious group from the Dune anthology. They are know for their training their bodies to gain superior combat skills, precise physiological control, and are highly skilled in hand-to-hand combat.
They went on to become an inspiration for another similar group seen in a movie launched in 1977. This group became so popular that people across the world identify this as their own religion. Which group am I talking about?