Literature Reference: 瑞，祥瑞也；玺，印也，天子之印。—— 《说文解字》 Ruì symbolizes auspiciousness; Xǐ refers to the seal, the emperor's seal. Source from 'Shuowen Jiezi'.
瑞: Auspicious fortune. Health, smooth progress, and all wishes fulfilled.
玺: The imperial seal, known as "Yin," became exclusively associated with the emperor after the Qin Dynasty. The character "Ji" signifies auspiciousness, symbolizing its immense value and reverence.
Meaning: Ruì represents auspiciousness, while Xǐ symbolizes the emperor's seal, signifying nobility and authority.