Agonía translates to "agony" or "anguish". It's a strong and dramatic word that conveys intense suffering, both physical and emotional.
In the song, the singer uses it to describe the deep pain and distress the other person is experiencing due to their breakup. He sings, "Hoy comprendo tu tristeza mientras agonía estás viviendo," meaning, "Today I understand your sadness while you are living in agony." This word powerfully captures the emotional turmoil of a difficult separation.
Have you ever had to break up with someone, even though you know it's going to hurt them? That's exactly what Ivan Villazón is singing about in "Compréndeme" [Understand Me]. He's in a tough spot, telling his partner that he doesn't love her anymore, even though he knows she'll hate him for it. He sings, "tú no vas a comprenderme y hasta sentirás odiarme por momentos" [you won't understand me and you'll even feel like hating me at times]. He feels terrible, but he can't keep pretending to feel something he doesn't. He even says, "se pagaría con mi vida" [it would be paid with my life] to avoid this pain, but he can't lie anymore.
What's really interesting is how the song switches perspectives! In the second part, it's like the partner is responding, or maybe Ivan is imagining her pain. She's upset because she fought with her parents to see him, and now he's saying he doesn't love her. He acknowledges her sadness, saying, "hoy comprendo tu tristeza mientras agonía estás viviendo" [today I understand your sadness while you are living agony]. But then, he tries to encourage her, telling her to move on and find someone who will truly love her: "anímate tú mereces que te quieran levántate" [cheer up, you deserve to be loved, get up]. It's a really honest and emotional look at the difficult end of a relationship.