A dream come true starts with the belief that a dream is possible first. But have you ever wanted something really bad and then realized that you don't want it anymore after you got it? Or maybe your dream come true really is amazing. But you thought your life would be perfect if you just had that one thing, and now you realize it isn't. There are still problems to deal with. Or you realize that it's nice to get what you want, but not particularly amazing. What seemed glittery, fascinating, and full of illusion when it was just beyond your grasp just gives you the same feeling as looking at the furniture in your living room after you get it. (Who would have thought?) Or maybe you realize that you don't want what you thought you wanted after all. Maybe you were completely mistaken in your desire, and everything you dreamed it would be was just a fantasy that has nothing to do with objective reality. Maybe by getting what you thought you wanted, you ended up with something you truly don't want at all. That's definitely happened to me before.