I ADORE THE DUNE CHRONICLES. The movie kinda sucks. You could've quoted the book itself, couldn't you? Melange: the "spice of spices", the crop for which Arrakis is the unique source. The spice, chiefly noted for its geriatric qualities, is mildly addictive when taken in small quantities, severely addictive when imbibed in quantities above 2 grams daily per seventy kilos of body weight. (see Ibad, Water of Life and Pre-Spice Mass). Muad'Dib claimed the spice as key to his prophetic powers. Guild navigators make similar claims. Its price on the Imperial market nas ranged as high as 620,000 solaris the decagram.