The difference between reality and fantasy is that reality has boundaries, while fantasy breaks boundaries. Why else do you think people like the impossible? So they can go past life to get to something better. Something easier to understand and go through. So what happens then your fantasy world breaks? When you return to Earth? Reality comes back. And it is never happy when somebody escapes it's control. It comes back mad.
"The longer you hide in your fantasy world, the harder reality is going to slap you when it finally tracks you down."
-Susan Gale
