Before creating the Sisterhood's 'Messiah', all born children were girls intended for future breeding.
They could control blood flow, body temperature, heart rate, consciousness, their skills unmatched in combat.
They could even use spirit combined with truths to temporarily control the mind and thoughts of others, easily discerning lies from truth.
After consuming the special product from the death of a sand worm—Water of Life, these women, strong as witches, could unlock ancestral memories within their bloodline, perceiving all history, gaining the knowledge and wisdom of past female ancestors.
The savior they want to create, the 'Kwisatz Haderach', will be born male in the plan, capable of possessing all the memories of male and female ancestors of all human families, becoming a human computer Mentat.
