Someone who is experienced and has succeeded in the business is what you need to guide you on your way to success. An experienced mentor will show you the way how to achieve your goal without passing the pitfalls the mentor himself did in the past.
The mentor will show you the kind of business that can be relied upon based on his/her experiences. When you have a reliable mentor, you will be able to avoid unnecessary steps which will otherwise cost you unnecessary waste of time, money, and energy. Your mentor will help you by telling you what you really need to do and what you have to avoid. Under his/her guidance you will do your business in a more efficient and effective manner.