Literature Reference: 瑚琏之器，邦国所宝。—— 《论语·公冶长》 The vessels of Hu and Lian are treasures of the state. Source from 'The Analects of Confucius'.
瑚: Coral is used metaphorically to describe a person's capability to serve in the court and govern the state with distinction.
Meaning: Hu and Lian are precious sacrificial vessels, symbolizing rarity and nobility.