亡鱼是深海的疤旧言是空城的疮
[wáng yú shì shēn hăi de bā jiù yán shì kōng chéng de chuāng]
Translating 'Wang Yu Shi Shen Hai De Ba Jiu Yan Shi Kong Cheng De Chuang' into English would give 'The Lost Fish Is A Scar Of The Deep Sea And Old Words Are Ulcers In The Empty City'. This could suggest feelings of loneliness and the pain brought by the past memories and words.