this is a very scientific approach to meditation and an attempt to make it quantifiable and like a video game you can play through, following the 10 stages to shamatha.

i like it better when meditation is approached more like a theory that can never be fully proven or quantified because many parts are highly subjective.

still, there are some pieces of advice that helped me in my practice (make it more "efficient" in the jargon of the book) and i am only stopping it because i have listened up to the "stage" i am at, and for this advice i will continue listening once i have "mastered" that "stage".