I found this fascinating quote today:
Visualization is a very powerful tool for achieving amazing results in your life. Many successful people have claimed to use visualization to accomplish their goals, such as Jack Nicklaus, Ellen DeGeneres, Jim Carrey, and many others. Jim Carrey once told a story about how he wrote himself a cheque for $20 million dollars long before he made it big. He would imagine getting paid that amount for doing movies and he would regularly use affirmations telling himself how successful he was and how great he was. Eventually, everything he imagined and told himself came true. These successful people all started out small. You’re no different than anyone else: you can use this tool to your advantage as well.positive-attitude-tips, Positive Attitude Tips, Apr 2009
You should read the whole article.