Melange, often referred to as "the spice," is a fictional substance from the Dune series by Frank Herbert. It is a powerful and addictive drug that grants users heightened awareness, extended lifespan, and the ability to navigate space by enhancing mental capabilities. The spice is primarily found on the desert planet of Arrakis, making it the most valuable resource in the universe. The production of Melange is closely tied to the ecology of Arrakis, where giant sandworms play a crucial role in its creation. Control over the spice is a central theme in the Dune saga, leading to political intrigue and conflict among various factions, including the House Atreides and the House Harkonnen.