Entrañas literally translates to "guts" or "innards," but it's often used metaphorically to mean the deepest part of something, like the "depths" or "heart."
In "Por Volver a Amarte," Maelo Ruiz sings, "trabajo las entrañas de la intensidad" (I work the depths of intensity). This powerful imagery suggests he's delving into the very core of his emotions and efforts, going to extreme lengths for love. It's a vivid and evocative word that adds significant emotional weight to the lyrics.
Maelo Ruiz's "Por Volver A Amarte" is all about that intense, overwhelming desire to get back to someone you love. Our singer is completely consumed by this feeling, telling us, "Ya no siento disparos corre por mi cuerpo y tus besos son aguas hacia este desierto" [I no longer feel shots running through my body and your kisses are water towards this desert]. It's like his whole being is a dry, empty place, and only this person's love can bring it back to life. He even gets goosebumps just remembering them saying they couldn't live without him!
He's really struggling to fight this urge, saying, "ya no aguanto las ganas no encuentro las cuestas intento vencerme" [I can't stand the desire anymore, I can't find the slopes, I try to overcome myself]. It's clear he's tried to move on, but every time someone mentions this person, all he wants is to be with them. He's willing to do anything, even "bajo las estrellas de la inmensidad" [under the stars of immensity], just for the chance to love them again. He'd give his soul and life in an instant, truly! It's a powerful declaration of undying love and longing.