This literal spark acts as a powerful metaphor for two distinct themes:
The moment the artist is actively burning and suffering is the exact moment the crowd finally stands up and cheers. The industry and the public often demand that artists destroy themselves or experience immense pain for the sake of entertainment. Bridging the Underground and Pop The Weeknd - Can't Feel My Face (Official Video)
The song compares a toxic love (or drug use) to a numbing sensation ("I can't feel my face"). The fire represents the destructive nature of this high—it consumes him entirely, yet he keeps going because of the euphoria it provides. This literal spark acts as a powerful metaphor