尘落信笺君不还留我空唱白骨哀
[chén luò xìn jiān jūn bù hái liú wŏ kōng chàng bái gú āi]
Expressing profound sorrow in love where messages delivered seem unanswered and waiting turns into endless sadness, perhaps reflecting a past filled with bittersweet moments and heartache, singing mournfully of what remains.