Literature Reference: 冀马楼兰将，燕犀上谷兵。—— 《相和歌辞 从军行二首 一》 虞世南 Ji horses and Loulan generals, Yanxi soldiers from Shanggu. Source from 'Congjunxing Ershou Yi' by Yu Shinan.
燕: The swallow. In names, it often symbolizes good fortune and peace, signifying auspiciousness, health, and a beautiful life.
犀: Rhinoceros horn, the rhinoceros.
Meaning: Yanxi symbolizes bravery and resilience, like the soldiers from Yan in their unbreakable armor.