海是没有墙的城天是没有影的形
        
            [hăi shì méi yŏu qiáng de chéng tiān shì méi yŏu yĭng de xíng]
        
        
            'The Sea Is a Wall-less City, The Sky Has Shadowless Shapes' poetically reflects deep philosophical ideas about infinity and insubstantiality, expressing abstract thoughts on vastness.