After Paul got revealed to be the Kwisatz Haderach, he gained clairvoyance across space and time. Paul's prescience enabled him to foresee doom on humanity. Trying to avert the impending doom, Paul theorized the Golden Path. Though he theorized the Golden Path, Paul left it and became blind. Leto II, Paul's son, takes up from where his father stopped and completed the plan to place humanity on the golden path. Finally, during Kralizec, Paul reveals that the true Kwisatz Haderach was Duncan Idaho.