Literature Reference: Skilled in both civil and military arts, illuminating the glorious ancestors. Source from 'The Book of Songs·Daya·King Wen'.
允: Promise, to permit. It metaphorically signifies honesty and trustworthiness, ensuring that every commitment is fulfilled.
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.
Meaning: Yun Han signifies exceptional talent, both in civil and military arts, with a broad mind as vast as the Han River.