Domar literally means "to tame" or "to break in," often used for animals. It's a strong and evocative verb that immediately brings to mind a sense of control and wildness.
In this song, the artist uses domar metaphorically to describe the intense effort and struggle to understand and control a complex, perhaps unpredictable, romantic relationship. The phrase "Debo domar tu corazón" (I must tame your heart) is particularly striking, suggesting a battle of wills and emotions rather than a simple romance.
"Doma" ("Tame") is about the push and pull of a confusing relationship. The narrator calls the person he loves both his hero and his villain, someone who acts like a walking mystery he can't stop trying to solve.
He reads every call, every touch, every outburst like clues, trying to find the moral of the story and finally understand her. The chorus keeps circling back to one goal: taming her heart, not to control her, but to make sense of a love that keeps hurting him.
By the end he's still chasing answers, refusing to give up even as the mystery deepens. It's a song about loving someone you can't quite read, and choosing to stay in the puzzle anyway.