For GOALS to motivate, they must be:
A Specific goal is so clear and concise that there is no room for doubt as to where you're going.
A Measurable goal has a number associated with it that can be tracked.
An Attainable goal is one that you are either equipped to accomplish now or will be equipped to accomplish in the foreseeable future.
A Realistic goal is one you're truly willing and able to do.
A Time Specific goal is tied to an actual time period and feels like a deadline.
In addition, I believe goals must be Compelling. A truly compelling goal will get you out of bed in the morning and help you weather the tough times.
I also believe that goals must be Written down and physically Visible so they can become part of your subconscious. That way you will find yourself consistently taking actions that move you toward completion of your goals.