Literature Reference: 鼓角缘边郡，川原欲夜时。—— 《秦州杂诗二十首 四》 作者：杜甫 Drums and horns resound in border towns, as night falls over the rivers and plains. From 'Twenty Miscellaneous Poems of Qinzhou' by Du Fu.
夜: The original meaning: The time from dusk till dawn, also used to depict mystery.
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 night river symbolizes tranquility, depth, and eternity.