Pudiera is the imperfect subjunctive form of 'poder' (to be able to), meaning 'if I could'. It's a word that evokes a sense of longing and hypothetical desire.
In the context of the song, the title itself, "Si Pudiera," sets a tone of yearning. The singer is expressing what he would do if he had the ability to change things or express his feelings more perfectly, making it a central and emotionally resonant word.
Have you ever been so smitten you can barely speak? That's exactly what José Felipe Mejía is singing about in "Si Pudiera"! He's trying to tell someone how he feels, how they make him dream, and why he can't sleep at night thinking about them. He's got all these words planned out, ready to express "lo que me hace sentir" [what makes me feel], but when they're around, it's like his words get all tangled up.
He admits that even just a smile from this person "siempre me hace sufrir" [always makes me suffer] – in a good way, of course! He wishes he could just take away all the bad things and be with them, asking, "qué estás haciendo en mi vida" [what are you doing in my life]? It's a sweet, relatable song about being completely overwhelmed by affection and struggling to find the right words.