In the early years of running a small business, keeping your vision sharply focused is vital.
If you can see the result and keep it in mind, you have a goal to shoot for. If you can't and your brain and vision gets foggy, you can be off course and flail while pursuing those initial clients and accounts.
Having a clear vision for your business requires clear goal setting and sticking with specific objectives. Break down what you need to do in to daily or at least weekly action steps.
Make sure the actions you're taking today will lead toward the income you're aiming for, the reputation you want to build in the business, and the customer satisfaction you need to attract referrals.
Having a vision for your business is like faith -- seeing things as they will be even if the current circumstances would tell you otherwise.
Also read the previous small business blog post about Focus, Focus, Focus.