埋下一座城关了所有灯
[mái xià yī zuò chéng guān le suŏ yŏu dēng]
In English it roughly means, 'Buried a city and turned off all the lights'. It conveys a sentiment of shutting out and moving away from a bustling, lit life into darkness and solitude. A symbolic gesture of withdrawing oneself or a significant part of the user's identity.