The song tells in fact a Bolivian legend from early 20th century about a deaf boy who leaves his abusing home and starts wondering on the streets accompanied by a stray dog. After some time he discovered he has the ability to understand people's troubles which he can heal by screaming, said to be as loud as an earthquake and a tornado. On his way he finds and old man, stoned by the villagers, who's heart he is reviving from sorrow. Together they meet a leper, a disfigured man rejected by the society, who is in fact a prophet cursed by an underworld demon, El Tio, who the man did not worship. Altogether they went in the mine where the demon lived; the deaf boy faced the creature alone and screamed to stop him from cursing others.
Now who would have thought this nice, kind of clubby, maybe sometimes remixed song would have such a story. Brilliant!
So now that you know the story, listen to the song again, have a look at the video one more time and say what you think!