Mendigar means 'to beg' or 'to plead'. It's a powerful and somewhat dramatic verb that isn't used in every song, making it stand out.
In this song, Carlos Vives sings, "Puedo mendigar por tu perdón" (I can beg for your forgiveness). This line beautifully conveys the depth of his devotion and willingness to do anything for his beloved, even humbling himself completely. It's a word that evokes strong emotion and commitment.
This song is one of the most romantic and over-the-top declarations of love you'll ever hear! Carlos Vives is so completely in love that he feels like he's been given a new life. He says, "por tu amor volví a nacer" (for your love, I was born again). To prove it, he lists all the incredible, and sometimes funny, things he's willing to do for this person. He promises everything from climbing the Himalayas to the very relatable "puedo no roncar por las mañanas" (I can not snore in the mornings).
At its heart, this is a marriage proposal. He's ready to leave his old life behind and commit completely, singing "Quiero casarme contigo / Quedarme a tu lado" (I want to marry you / Stay by your side). This love is so powerful it feels like his very breath, "Tu fuiste la respiración" (You were the breath). The thought of losing her is devastating, and he's putting it all on the line to make sure she stays.