이카루스 (Icarus) is a direct reference to the figure from Greek mythology famous for flying too close to the sun with his wax wings.
In "Boy With Luv", BTS creates a stunning new meaning for this classic story. They sing about using "the wings of Icarus you gave me" to fly not to the sun, but towards you. This beautiful metaphor shows how their love gives them the ability to soar, but their ultimate goal and focus is the person they love, not reckless ambition.
This song is a joyful celebration of finding happiness in the small, simple things of love, rather than chasing huge, ambitious goals. BTS sings about being completely fascinated by someone, wanting to know everything about them, from their interests to their habits. They sing, "하나부터 열까지 / 모든 게 특별하지" (From one to ten / Everything is special). It's about how this person has given them wings to fly high, as they say in the chorus: "나는 / 저 하늘을 높이 날고 있어 / 그때 네가 내게 줬던 두 날개로" (I'm flying high in the sky / With the two wings you gave me then).
Even though they've reached incredible heights, they're not interested in the fame itself. Instead, their focus is entirely on the person they love. They even twist the Greek myth of Icarus. Instead of flying towards the sun with their wings and falling, they want to use the wings their love gave them to fly directly to them: "네가 준 이카루스의 날개로 / 태양이 아닌 너에게로" (With the wings of Icarus you gave me / Not to the sun, but to you). The song suggests that this kind of love, a "boy with luv," is stronger than anything else.