It's one of my favourite songs, despite being a sad song (who knows me, knows I'm a hilarious person, so it's difficult I stop to listen to a sad song, but this one is an exception). It's the story of cousin Juan (El primo Juan: in English it would be The cousin John). He got a stomach cancer and the doctors were afraid to tell him the truth. But his cousin knew. As the cancer was terribly painful and chemo struck the cousin Juan, the doctors prescribed him marijuana (despite it's a dangerous drug in the case of healthy people, patients suffering from certain cancers and under chemo benefit from marijuana, as it treats their pain), in addition to a very strict diet: no whatever meat, no whatever fish, not whatever bread, no salty food, but basically fruit and water. Unfortunately, the criminal laws of that times in southern Europe (the scenario develops in Spain) didn't consider patients affected by cancer, so the police confiscated the marijuana plant to Juan. And poor cousin Juan, to relieve from his pain, was forced to resort to drug traffickers to get marijuana. The singer plays the song as she were Juan's cousin (maybe she is/was, I don't know if the fact really happened, but in any way it's the storytelling of a sad reality in Spain, as it was in the rest of south Europe, when the criminal law against personal use of drugs didn't consider patients suffering cause cancer and painful chemo). Obviously, the drug trafficking is a nasty crime of the worse and must be severely punished, but not the same a poor patient sufffering from cancer that shouldn't lack his/her pain relieve. The song follows (in Spanish):