hey Joe,
I haven’t read the book…but I have heard a lot about this from my friends. So I went through the documentary.
I think what they are trying to say is…never lose your confidence, always believe in what you really want in your life. And one day you will get it. They are not saying you to be in an imaginary world….but, believe in yourself. If you remember…one them says “you should know what do you want”. And then work accordingly on that…you will definitely get it.