Clay whistle used by shamans within the Incan culture, and very little has appeared in print or academic field journals on their uses. These small clay whistles were sometimes hung around the neck, and their sound was an accelerant to intensify the experience or ritual. Acted as a thread, or bridge to the spiritual plane. Announced the time when the shaman would 'see'. The sound would carry the listener to a circular space with a spiraling ascending nature.