Literature Reference: 函谷关前，韵致天成。—— 《古诗十九首》 At the front of Hangu Pass, the charm is naturally formed. Source from 'Nineteen Ancient Poems'.
函: The term refers to a letter and its envelope.
韵: Grace and rhythm, symbolizing elegant temperament, a life of comfort and joy, and a state of happiness and fulfillment.
Meaning: Rich in connotation and lingering charm, symbolizing wisdom and elegance.