This book describes everything I had experienced personally before I read it. The content grants me also the success of future experiences. I completed a Silva mind control course (decades before), because I wanted it to show me the existence of these phenomena. It was successful. Mental forces (and power) are existing, I use them with pleasure and am reading about them with curiosity.
On the other way, this book is very well written, the level of its content is understandable to all readers, especially for those who have already experienced similar things.