성배 (seong-bae) literally means "Holy Grail" or "chalice". This is a highly unusual and poetic word to find in a pop song, making it very memorable.
In "Blood Sweat & Tears", BTS sings "알면서도 삼켜버린 독이 든 성배" (a poisoned chalice that I drank knowingly). This powerful metaphor represents a love that is as irresistible and sacred as the Holy Grail, but also knowingly destructive and toxic. It's a perfect example of the deep, literary lyrics that make this song a classic.
Blood Sweat & Tears dives into the intoxicating push-and-pull between irresistible desire and the awareness of its danger. The narrator feels so captivated by a love or temptation that they are ready to pour out “my blood, sweat, and tears” and even their last dance to the one who beckons. Sweet images like “peaches and cream” and “chocolate wings” mingle with darker lines about pain and captivity, showing how pleasure and suffering get tangled when you are willingly trapped by something you crave.
At its heart, the song is about surrender: giving up control, sense, and even morality for a passion that tastes “too sweet.” References to a “tempter” and a “forbidden world” hint at classic tales like Faust, where a deal with the devil feels both thrilling and terrifying. BTS turns that story into a modern anthem, inviting listeners to feel the dizzying rush of wanting something so badly that escape no longer seems possible, all while dancing to an addictive beat.