Have you ever heard the expression, "if you don't believe you can do it you can't"? This holds true for business especially since many when beginning a new venture have some inherent doubts that can ultimately be the undoing of the business before it even has the chance to begin.
Our beliefs have a significant impact on how well or how poorly we do in any endeavor. This is even more powerful in the world of business because many of us have had various beliefs instilled upon us since childhood by our friends, family, co-workers and the like.
The worst form are those we generate for ourselves. Self limiting beliefs can destroy a business before it has had a chance to get off the ground simply because we possess the doubt that it will ever succeed.
To better one's chance of success one most first find within oneself those beliefs that could have detriment towards the business' ability to succeed. Just as easily as one may ruin a chance for success based on negative beliefs, one may enhance it's chances by replacing those limiting beliefs with positive views of the business.
The subconscious mind will accept both negative and positive views of what can and cannot be done with little regard for how helpful or not the information is. So please choose wisely that which you feed your subconscious mind with beliefs that will help to prevent you from limiting yourself and your business.
The stronger one's belief is towards the positive the greater one's chances for success are. Combine this with drive and persistence and nearly anything can be accomplished.
Do not allow the mind to ruin something before it has a chance for success. However due use some pragmatism. Purely going on optimistic beliefs in something does not guarantee it's success, merely a positive framework to put behind the effort.