Pecaría comes from the verb pecar, meaning "to sin." It's used here in the conditional tense, meaning "would sin."
In the context of the song, the lyrics ask, "¿Y quién no pecaría por esa mujer?" (And who wouldn't sin for that woman?). This highlights the intense, almost irresistible allure of Eva, suggesting that her presence is so captivating it could lead one to break moral boundaries. It's a dramatic and engaging word that adds a layer of forbidden desire to the narrative.
"Eva" imagines the moment someone's arrival gives the world its meaning. Before her, the singer describes a beautiful night, a waterfall, a garden — all lovely, but somehow pointless, like a star with no one to see it shine.
Then Eva is born, and everything changes. The earth can finally turn, breathing makes sense, and loneliness is over. He wants to learn everything about her, even physics and math, just to understand her fully. It's a clear nod to the story of Eve, the first woman, as if love itself were a second creation.
The song closes with her name repeated over and over, like a chant, celebrating how one person can make the whole world feel new.