If you sell boats, describe what it feels like cutting through the waves with your friends onboard. If you sell financial products, describe what it feels like to enjoy an affluent lifestyle without debt. If you're a business coach, describe what it feels like to own a highly profitable business. When possible, include a photograph of someone enjoying the emotional reward. Don't use the photo to replace your word picture.
Most people buy for emotional rewards then look for logical reasons to justify their purchase.
After dramatizing the emotional rewards of your product or service, include a little bit of logical reinforcement. It helps your prospects act on their impulse to buy. Include a brief testimonial from a satisfied customer. Mention a few facts supporting the value of your product. Take some time to look at your promotional material.