I have no idea why people buy this one. I bought it reading the reviews. But this book is a waste of money. Only book I could never finish reading. The same thing is written chapter after chapter. Learn from the author how to stretch a one page idea to a 350+ page book. Also most of the incidences are too supernatural that they are coincidental and not scientific unlike what the book claims. I'm a book lover and this is the only book I regrer buying.