Affair Of The Heart

The speaker describes an intense romantic and sexual relationship, insisting that it means more than physical attraction. At first, the lyrics emphasize excitement and desire; as the song continues, the speaker argues that strong feelings and emotional connection are involved too. The repeated claim that it is “an affair of the heart” sounds like both a declaration and a plea to be believed.

Several images make the desire feel almost overwhelming. “Heart in my mouth” suggests nervous excitement, while “pulse in my head” and “Mercury rising into the red” evoke a body under pressure or growing heat. Saying “I hand you the keys” is figurative: the speaker gives the other person power over him. The phrase “blind faith” means trusting without complete proof, which hints that the speaker wants reassurance as much as romance.

The relationship is presented as passionate, but not entirely balanced or simple. The speaker says the other person can “play” his emotions, and the aside about being “the controller” who wants to “seize” and “make” the partner his introduces possessive language. This may be playful exaggeration in a song about desire, or it may suggest a wish to control the relationship. The lyrics do not resolve that tension; they leave listeners to weigh the speaker’s claim of emotional depth against the forceful, physical imagery.