What is the meaning of Tianbao Jiuru

Tianbao Jiuru is one of the traditional Han Chinese auspicious motifs. Tianbao is the name of a poem in the Classic of Poetry - Xiao Ya; Nine Ru: the poem uses nine "Ru" words in a row, which has the meaning of congratulating the longevity of blessings. In the old days, it was used to congratulate a person on his longevity. Nine Ru is like a mountain, like a mound, like a mausoleum, like a hillock, like a river to the square, like the moon's constant, like the sun's rise, like the pine and cypress's lushness, like the life of Nanshan, because each sentence has the word Ru, so it is called Nine Ru, and all of them are the words of praise and prayers