Dune

This is widely to be considered the most prescient SF novel ever. It tells the sweeping tale of a desert planet called Arrakis, the focus of an intricate power struggle in a byzantine interstellar empire. Arrakis is the sole source of Melange, the "spice of spices." Melange is necessary for interstellar travel and grants psychic powers and longevity, so whoever controls it wields great influence.