画地为牢囚自己在旧城
        
            [huà dì wéi láo qiú zì jĭ zài jiù chéng]
        
        
            Literally means drawing boundaries for oneself as a prison in an old city. It expresses being trapped by oneself in past memories or experiences within an outdated context. It symbolizes self-restraint from personal advancement due to attachment to nostalgia.