There may be no sound in space, but Geawen Dance Dust will bring the music inside your cockpit, and inside your head. You literally won't be able to stop dancing.
— In-Game Description
Geawen Dance Dust is a specific item of Legal Drugs in the world of Elite Dangerous. They are sold at Obruchev Legacy, an outpost that is roughly 462k ls away from the arrival point - a 20 minute supercruise.
Rare goods increase in value the further you travel from their point of purchase. The allocation of rare goods increases when the system is in boom state and decreases in system is in bust state.