The Drowning of the Baby Worm
Paul is shown by Stilgar how the Fremen obtain the Water of Life. A baby worm is drown in a vat of water, the body removed and the liquid (the Water of Life) that is expulsed from the worm's mouth is collected.
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Script Extract
INT. ROCK LEDGE - HALL OF RITES - SIETCH TABR - NIGHT Stilgar motions to Paul. STILGAR (whispering to Paul) Do you know the Water of Life?... Come... ...Watch... the mystery of mysteries... the end and the beginning. He shows Paul through a narrow passageway -- almost a slot through the stone to a small room. Through an opening in the stone wall, Paul is shown a very strange and somewhat horrifying scene. INT. BABY WORM - MAKER ROOM - SIETCH TABR - NIGHT A thirty-foot baby worm is being lowered into a stone chamber. The chamber is then covered with a wire top. Valves are turned and water rushes into the chamber. The worm begins to writhe violently and leap and bang against the bars above. The worm begins to turn inside out from the mouth back and it begins to gag. Some monks and watermasters quickly drain the stone chamber and wrench the worm out using large steel hooks. They hold the worm above a large tub. A watermaster-reed man runs a long reed in to the worm, causing it to spasm and gag up a beautiful deep blue bile as it dies. INT. MAKER ROOM - SIETCH TABR - NIGHT The bile and worm water are combined in ceremonial containers. Paul turns to Stilgar. STILGAR The Water of Life. PAUL (inner voice) The most lethal poison in the Universe.