Costilla literally means "rib". While it's a common anatomical term, its use in this song is deeply rooted in a biblical and romantic metaphor.
Ricardo Montaner sings, "Cómo decirte, mujer, que mi costilla / Antes de tú y yo nacer, ya no era mía" (How to tell you, woman, that my rib / Before you and I were born, was no longer mine). This alludes to the biblical story of Eve being created from Adam's rib, implying that his destined partner was always meant to be his missing piece, even before their birth. It's a unique and poetic way to express predestined love.
This song is about a love that feels bigger than choice — like it was written before the two of them ever met.
The singer tells his partner that their story isn't luck or coincidence. He compares her to his own rib, borrowing the old idea that she was always meant to be part of him, even before either of them existed. Life before her felt incomplete, like waking alone before dawn, and he didn't fully understand what was missing until she arrived.
The chorus keeps returning to the same idea: they take care of each other, and none of it happened by accident. Whatever brought them together, he believes it wasn't fate or chance — it was simply meant to be.
Ricardo Montaner is a highly regarded singer and songwriter, with roots in both Venezuela and Argentina. He is celebrated for his romantic ballads and has enjoyed a long, impactful career in Latin music. Montaner's distinctive voice and heartfelt lyrics have made him a beloved figure, connecting with audiences worldwide.