In Celtic myths, the significance of the Banshee, or Bean Sídhe, lies in her role as a herald of death. She is believed to appear to foretell the demise of a family member, wailing as a sign of impending loss. The Banshee embodies themes of life, death, and the connection between the spiritual and physical worlds. While often perceived as a feared figure, she represents the complex emotions surrounding mortality and serves as a reminder of the inherent transience of human experience.