Oh, power through for sure! Dune is one of my all-time favorites. When you're finished with the book, be sure to stop over at the wiki and read about the lore. The lore is deep in Dune and not a lot of it makes it into the movies and doesn't shrine through in the first book. Especially check out lore on the various factions.
The Bene Gesserit for instance seem like a cult of witches at first read, but they are much, much, more with a 10,000+ year history of eugenics.