 Later in the events of "Dune", Margot is sent by the Bene Gesserit to seduce Feyd-Rautha Harkonnen and to "preserve the bloodline" by retrieving his genetic material (through conception) for their breeding program.She also intends to "plant deep in his deepest self the necessary prana-bindu phrases to bend him," which she later refers to as the "Hypno-ligation of that Feyd-Rautha's psyche.