In the movie "The Secret" visualization is one of the keys to manifesting and attracting things into your life. The reason visualization is so powerful is that it allows you to create pictures in your mind, seeing yourself with whatever it is that you want and as such you want to create the thoughts and feelings of having it now. Visualization is a technique that is used in many sports and it's used by many celebrity sport figures such as Tiger Woods. When you begin to envoke the power of visualization you are in fact emitting a powerful frequency out into the Universe. The law of attraction will take hold of that powerful signal and return those pictures back to you, just the way you say them in your mind.