Once a kid, under the "wall's" protection...
Oneday, started to wonder what the world is like on the other side of the wall.
Then grows up gradually, trying, trying and trying, after several attemps, climbs up the wall.
Spending most of the time experiencing, admiring the view....
So.....the clouds aren't blue afterall.
So..... rabbits could run free among the clouds.
So.....Sakura blossoms all four seasons.
So..... on this other side of the world, there is a creature pondering the same thing...and looking towards this way.
So.... there is arcadia on the other side of the cloud
So....what ever that had been seen, felt or touched, it was only the person at that " moment" in time could feel.
Because going through all these bits and pieces of experiences,
while climbing down the stairs, then you feel,
you haven't missed a single thing of life.