Literature Reference: 舒华光四海，卷叶荫三川。—— 《探得李》 Its splendor illuminates the four seas, its leaves shelter the three rivers. Source from 'Tan De Li'.
三: meaning to think thrice, or deep thought. acting after thinking thrice, leads to smooth and successful endeavors, earning the trust and confidence of many.
川: The river flows ceaselessly. The character (字) is vast and potent, capable of triumphing over all things. It is the character of supreme fortune.
Meaning: The three rivers symbolize vast territories and prosperous scenes, signifying a broad mind and glorious achievements.