Dune explores the top levels of its sci-fi society. The lives of ordinary people rarely come up in the tales of Dukes, Emperors, and Princesses. Paul Atreides and his family leave the comfort of the beautiful planet they've ruled for 10,000 years to dominate the galaxy's most critical resource. Above their domination rests the Padishah Emperor, the most powerful man in the universe. His daughter, Princess Irulan Corrino, is a fascinating part of the story.