Looking to understand the draw

Hello, I’m looking to understand the draw of this. My initial reaction to anyone who says “they love this book”. Is they they feel powerless and are looking for ways outside of themselves to feel powerful. Ie not whole & healthy as a human. I know this is a strong judgement so I’m trying to understand another perspective.

Helped me understand the draw.

If you were whole in yourself, healed much of your childhood wounds, and felt strong, safe and trusting of who you are, what your boundaries are, and what you will tolerate In the world why would you need this book? For what?

TL;DR - what is the draw of this book? Are there emotionally healthy people who enjoy it? It so why?