When raising money, you generally need a business plan ... be interested in looking at your opportunity, you need a summary, i.e. an "Executive Summary", of your plan which is brief, to the point, and ...

An executive summary is a short but powerful document that can help you to get your point across quickly and effectively. Although it is usually the first section of a business plan, it should be ...

So the executive summary, or statement of purpose, should succinctly encapsulate your reason for writing the business plan. It needs to tell the reader what you want and why, right up front.