Normal folks give up dreaming like that in their early teens.
After a short diatribe in semantics, or maybe even polemics, you might be inclined to ask...How dare you ?
I view a dream as something worth working for and fighting for.
If you have a dream, and you don't lift a finger to make it come true, then I would call that a fantasy. I would compare it to a lib fantasizing about winning the lottery.
But, before you ask...How dare you ?