It takes a lot to open the door to that journey. Leaving the wall protected space to explore the unknown is unsettling to almost everybody. The travel itself comes almost effortless -- even if there are obstacles, you'll find a way to proceed and sooner or later you get to your destination.
Limit #24 Chosing Comfort Over Freedom
And you may find yourself in fear to actually enter these walls which you considered your destination. You feel more than you know that you'll give up some freedom, and you can't tell if you'll trade for the better or worse. Even if you feel the joy of finishing a long and experience loaded journey, you'll open that door to what you expect will comfort you almost in trance.