[jeffreyrogers]

Basically he describes the process as one of continually looping through various mental stages as one progresses in their meditative practice. Many of these mental stages look like psychotic episodes to me and I worry that getting into the practice would preclude me from accomplishing other things that are more important to me.

Here is a decent overview of the book that goes into more detail: https://slatestarcodex.com/2017/09/18/book-review-mastering-...