半梦半醒伴悲伤旧城旧景救心忘
[bàn mèng bàn xĭng bàn bēi shāng jiù chéng jiù jĭng jiù xīn wàng]
This can be translated to mean being 'Half awake and half asleep in the midst of sadness', the old city's sights which usually would evoke strong memories are not enough anymore to save a broken heart from forgetting.