人间有座墓碑里埋着我
[rén jiān yŏu zuò mù bēi lĭ mái zhe wŏ]
'In this world, there's a tombstone bearing my name.' It conveys sorrowful contemplation, self-reflection on life's meaning or loss, but could also refer to the temporary retreat of the soul or spirit into isolation without completely leaving real life and death.