Remember the time they told us to ""image a cave""? Here's more of that stuff. Cure your phobias, improve your sex life, diet, and so forth by imagining possible horrid outcomes and deducing that the real thing is never quite as bad. ""If you wish to accomplish something in reality,"" says this author, ""first picture yourself achieving it in imagination."" For the plane-phobic executive female, plane = crash. Pilot = danger. Jet = explode. He cured her, he says, by taking her on pleasant imaginary airplane rides. ""Stop. Put down this book. Think. . . . And finally, focus on things that make you feel scared."" Stop. Put down this book.