How to understand the poem "See Su Qin get off the plane"?

This sentence comes from the second of three poems of Li Bai's Farewell to the Mainland. The whole poem is: "My wife forced me to take clothes and asked me how long I would go back to the West. I was wearing a gold seal when I came, so I didn't see Su Qin get off the plane. " In the poem, I compare my wife to Su Qin's wife in Luoyang, which is the inversion of Su Qin family's allusion to him, meaning: If I am lucky enough to be a big official, I will come back.