Literature Reference: 夜闻汉使归，独向刀环泣。—— 《相和歌辞 从军行》 At night hearing the return of the Han envoy, I weep alone facing the knife ring. Source from 'Xianghe Lyrics: Marching to the Battlefield'.
汉: The name of a river, the Han River, the largest tributary of the Yangtze River. It extends to signify vastness, benevolence, open-mindedness, and magnanimity.
使: To dispatch, to send on an official mission.
Meaning: The Han envoy represents the emissary of the Han dynasty, symbolizing loyalty, mission, and honor.