When the wall breaks down, I meet others, and when I overcome the wall, I catch a glimpse of freedom. Is that wall inside me or outside? I, who recognize others as enemies, may not realize that the basis of my convictions is supported by relative validity. While dreading the internal enemies, I diligently build walls in preparation for external enemies and compulsively erect makeshift walls. Even if I remove the wall after the enemy in front of me disappears, like cancer cells cunningly surviving a crisis, the wall will eventually reappear like underground water, even more invisible than before. Unlike the solid walls of the past, the walls of the age of diversity spread across the world like interwoven laser beams. The walls of today, which are collapsing as soon as they are built, may no longer be able to protect us. Can I muster the courage to look outside the wall? Can I face the fear of the other that lurks within? When we respect each other's irreplaceable goodness and legitimate diversity emerges in society, we will be standing on top of the wall, enjoying a breathtaking view in a pleasant breeze.