I read Dune for the first time in seventh grade, so it has an indelible place in my mind.
It really shook me on how to view religion at an age where those kinds of things didn’t cross my mind. It was just the right blend of “hero’s journey”, technology vs primivitism, and modern day geopolitical allusions to properly blow my mind.
For that reason, I always preferred the tv miniseries, as it properly conveys some of those themes found in the book that got lost in the movie. It’s flawed, of course, with the Xena-grade special effects and spotty acting, but the structure of the storytelling is great.
Dune (the book) has its own issues on how it’s all front loaded with content and exposition and then it really doesn’t start to “hum” until they get to Arrakis. Makes it hard for a director to find a proper balance if they are going to be slavish to the source.