鱼是一缕未亡的魂海是一座无墙的城
[yú shì yī lǚ wèi wáng de hún hăi shì yī zuò wú qiáng de chéng]
Fish here is metaphor for the user's wandering soul and sea for the vast open world around us. Fish swimming endless without borders reflects inner self, seeking freedom in boundless world yet tied down in invisible chains.