There´s a difference between a dream and a fantasy. A dream´s something that you fight to make real, but a fantasy is just a fantasy that stays in your head. It´s a very small chance it´ll become reallity, but the knowing of that it could, makes at least me very jittery.
I have a very typical fantasy, it´s a very small chance it´ll come true, but it makes me very jittery.