“Heaven and earth were born together with me, and the ten thousand things and I are one.”Zhuangzi · Zhuangzi · -300 · capitolul 2
The border between me and the world is drawn by my mind, not by reality.
Ordinary thinking splits the world into 'me' and 'things', then lives anxiously defending that border. Zhuangzi suggests the border is a construction of the mind: I, the mountain, and the fly arise from the same process and dissolve into the same process. Once you see a wave as part of the sea rather than an object to protect, the fear of loss thins out. Someone fretting over aging forgets that aging is the same current that once made them young.
The boundary between "me" and "the world" is manufactured moment by moment, without our noticing. Zhuangzi invites a simple experiment: draw a breath into your chest. You can call it yours, but a second ago it belonged to the sky, and soon it will return. The same goes for food, for words learned from others, even for thoughts. What we call "I" is more like a movement within a current than a locked object. A person who wakes up and says "today I must fight the world again" builds that wall inside the very sentence. If the boundary is made constantly, it can also be thought differently. But what exactly happens to fear when the wall thins?
Why it matters If you feel small and besieged by a hostile world, the image works as an antidote to loneliness: you are not a defender under siege but a temporary shape of the same whole.