Spice essence

The essence from the giant worms in Dune (novel) book series. This essence is rich around the planet Arakkis which causes the blue eyes natives have. The essence is a massive economic product used to move space craft and induce pschadelic effects. Spacing Guild uses the spice to move space craft. And the Bene Gesserit uses it to forsee the future. Without the worms there would be no spice essence