It manifests itself as a light that appears during the night in open, country or mountain areas. Always away from those who observe her. They are the souls of people who have died unjustly and have not purged their sorrows. They come to the surface to demand justice for his undeserved death. St. Bartholomew's Day (August 24) is the most propitious to see her, according to the general belief in Argentina, it is the only day of the year when Satan is freed from the surveillance of the angels, and takes advantage to attract souls. To get rid of the bad light you need to look at the sky and bite a knife.