Literature Reference: 多病休儒服，冥搜信客旌。—— 《敬赠郑谏议十韵》 Despite illness, I shed my scholar's robe, searching deeply for the banner of the traveler. Source from 'Respectfully Presented to Advisor Zheng, Ten Verses'.
客: Politician, knight-errant.
旌: The flag symbolizes noble and graceful individuals, harmony between superiors and subordinates, gentleness and benevolence, prosperous success, and a favorable environment.
Meaning: The traveler's banner symbolizes the spirit of journey and exploration.