 The Bene Gesserit are focused on acquiring more power and influence to direct humanity on an enlightened path.Some of their fictional powers are analyzed and deconstructed from a real-world scientific perspective in the book "The Science of Dune" (2008).The Bene Gesserit are primary characters in all of Frank Herbert's novels, as well as the prequels and sequels written by Brian Herbert and Kevin J. Anderson.