When does a desire become a goal?

The thought crossed my mind when talking with a friend. I was trying to explain the difference I see between a desire (something you want to recieve) and a goal (something you are willing to work towards). I would love to hear what you think? For me a desire is more of a wish. I wish something to be different. I wish i could find my ball. A goal is something that you are willing to work towards. Not wishing for it to happen but working to make it happen. I will do these steps so that I will be different. I will walk the line of my ball until I find it. Or if the 3 minutes are up. If you are not willing to put in the effort to achieve your goal is it really a goal? or is it a desire? a Wish!