A business plan can help to move you to action. You may have been thinking for years about starting a business or engaging in some venture, but the process may seem too daunting, too large and too complicated. A business plan will help you to pull apart the pieces of starting a business and examine each piece by itself. So instead of one large problem, you have a sequence of smaller problems. And by solving the small problems, the large problem is automatically solved. So writing a business plan can help to move you to action by breaking down a seemingly insurmountable task (starting a business) into many smaller, less intimidating tasks.