When Jonathan Goldstein was a kid, his father gave him a book that promised to teach you how to shoot mental laser beams, win the lottery, move solid objects with your mind, make others obey your command – all through the use of mental power and magic words. This week, he revisits the book to try to unlock the secrets within. And we have other stories where people recite words that have the power to change their lives, with no magic or mumbo jumbo at all.