Like 20 years ago, I read L. Ron Hubbard's science-fiction series Mission Earth. The books were sarcastic, wack-o and totally bizarre. Then, I heard this writer made up his own religion and people bought into it, so I had to know more.
I read Dianetics. You NEED someone else to get you to clear. Um, no, thanks. I had no intentions of letting cult auditors get their hands on me. And lo and behold, Self Analysis showed up. Of course, you can't get perfection on your own, but you can get close.
I still have this book on my shelf because it's great for prompts. There are pages of lists of things to think about in various ways.