“Why do you go away? So that you can come back. So that you can see the place you came from with new eyes and extra colors. And the people there see you differently, too. Coming back to where you started is not the same as never leaving.”
From Terry Pratchett's book A HAT FULL OF SKY (an evocative title in and of itself). We return from our journeys different than we were when we left. No one can venture forth to experience the world and come back unchanged.