In the context of the film, "Hikoukigumo" serves as a bridge between Jiro’s professional ambition and his personal grief.
Just like a vapor trail, Jiro’s "ten years in the sun" (his creative prime) and his time with Naoko are intensely beautiful but painfully short-lived. Kaze Tachinu - Hikoukigumo
Matsutoya wrote the lyrics after the death of a childhood friend who suffered from muscular dystrophy. In the context of the film, "Hikoukigumo" serves
The song was not originally written for the film. It was the debut single of (then Yumi Arai), released in 1973 when she was just a high school student. The song was not originally written for the film
The song plays into the film’s central question: how does an artist create something beautiful in a world that is broken? Jiro’s planes are masterpieces of engineering, but they are also tools of war.
The lyrics about a "child who looked at the sky before death" resonate deeply with the character of Naoko, Jiro’s wife, who battles tuberculosis while supporting his dreams.