I hope Zhai Yi will live a long life and celebrate his birthday every year. what's the meaning

This sentence comes from the poem "In the Heron Building" by Wang Zhihuan, a poet in the Tang Dynasty, which means that he hopes Zhai Yi can live as long as a stone and celebrate his birthday every year. Zhai Yi refers to Wang Zhihuan's good friend Yihe, and guarding Jinshi means Yihe can live as long as Jinshi. I wish Yihe a long and healthy life. I hope he can celebrate his birthday every year. This is also an expression of deep affection for friends, and it is the embodiment of lasting friendship.