This is a book of sermons. You know how you sit through a sermon (or maybe like me sleep through it).
People say afterward, "Wasn't that a great sermon!". Any we agree. But just ask them to recount one thing that was said in the sermon, and they probably can't.
This book is like that, nothing sticks. The first paragraph of each chapter introduces the idea, but the development doesn't stick.
Lots of people like this book and it is probably good for them. It was not so good for me.