A vision is a vivid mental image of what you want your business to be at some point in the future, based on your goals and aspirations. Having a vision will give your business a clear focus, and can stop you heading in the wrong direction.
The best way to formalise and communicate the vision you have for your business is to write a vision statement. A vision statement captures, in writing, the essence of where you want to take your business, and can inspire you and your staff to reach your goals.