Jessica takes the Water of Life in order to replace the Fremen's dying Reverend Mother. However, since she's pregnant, the Water of Life also transforms her unborn daughter Alia Atreides (Anya Taylor-Joy), effectively giving her a Reverend Mother-level of consciousness and power in the womb.

Prophecy introduces us to the Bene Gesserit more than 10,000 years before the birth of the films’ protagonist, Paul Atreides. It was mostly

Dune: Prophecy,' which follows the establishment of the Bene Gesserit years before the events of the movies, releases weekly on Max.

Prophecy means another cryptic prophecy to break down. Episode 2's prophecy comes courtesy of Sister Lila (Chloe Lea), a young acolyte in the Sisterhood who makes the decision to undergo the dangerous ritual known as the Agony long before she's ready.