笙歌绝何以笙箫默叹夜美何以叹影声
[shēng gē jué hé yĭ shēng xiāo mò tàn yè mĕi hé yĭ tàn yĭng shēng]
In the face of beautiful night and lonely shadow, how can silence of Sheng Xiao (traditional Chinese instruments) express its lament? It reflects the contrast between outward beauty and inward sorrow.