Literature Reference: The ancient garrison stands desolate, with cold beacon fires, and the vast wilderness is blanketed in heavy snow. Source from 'Listening to Dong Da Playing the Huqin and Sending a Message'.
苍: Indigo blue, deep green.
烽: Beacon smoke, beacon fires. "Feng" embodies versatility and ingenuity, gentleness and virtue, auspicious in the engineering field, ordinary in middle age, and achieving great prosperity in later years.
Meaning: The ancient and solemn beacon fire symbolizes steadfastness and vigilance.