Some of these essays from philosophers are pretty good: http://www.amazon.com/Dune-Philosophy-Weirding-Popular-Culture/dp/0812697154
Have not read it but have it: https://www.amazon.com/Dune-Philosophy-Weirding-Popular-Culture/dp/0812697154
Have read most of it, it is a collection of essays. For example, there is an assay by a chemist and biologist if sandworms are theoretically possible...stuff like that: https://www.amazon.com/Science-Dune-Unauthorized-Exploration-Psychology/dp/1933771283
Philosophy is “the study of the fundamental nature of knowledge, reality, and existence, especially when considered as an academic discipline.”
There’s literally books written about Dune and Philosophy.
Dune and Philosophy: Weirding Way of the Mentat (Popular Culture and Philosophy, 56) https://www.amazon.com/dp/0812697154/ref=cm_sw_r_cp_api_glt_fabc_5TT1NYPQWH8J7DBKEDTX