Blindo comes from the verb blindar, which means to shield or armor. It's a strong and somewhat uncommon word in everyday conversation, making it stand out.
In the context of the song, the lyric "La santita me blindo" (The little saint shielded me) suggests a powerful, almost miraculous protection from a difficult past. It evokes a sense of gratitude and resilience, hinting at a deeper story within the song.
"Mi Vida" is Luis Coronel looking back at where he started and giving credit for how far he's come. He opens with “Y esto es un poco de mi vida” (“And this is a bit of my life”), tracing a path built on hard work and staying humble rather than luck.
The heart of the song is gratitude: “Y a mi padre ahí le va hasta el cielo” (“And to my dad, this goes up to heaven”) dedicates the success straight to his father, and “La humildad no es para quejarse” (“Humility isn't for complaining”) sums up the attitude that got him there — keep your head down, work hard, and let the banda do the celebrating.