To see this in action, just surf around to successful sites selling an opportunity. Watch how often they tell you about a waitress or poorly-paid factory worker who used the business opportunity to earn a big income.
People remember a story.
Stories are also easier to relate to, especially if the person in the story sounds like yourself. If you are just starting out, the best story you can use is your own biography. Press kits and sales packages should include background information on you and your company. Many people, especially professionals, include a resume. A one page bio works much better.