Although there are various theories about this poem, one theory says that when a farewell party for Nakamaro who was going back to Japan was held in 753, he read this poem in Japanese in front of his friends including Wei WANG.
この歌を詠んだ経緯については、753年、帰国する仲麻呂を送別する宴席の時に、王維ら友人の前で日本語で詠ったなど諸説ある。