The "Mythical Dog" represents a legendary class of supernatural canines found in folklore across cultures. Often acting as omens, guardians, or spirit guides, these dogs appear in spectral or oversized forms and are deeply tied to the underworld, death, or fate. Unlike ordinary animals, they possess heightened awareness, magical traits, or divine connections.From the Celtic Cù-Sìth to the Greek Cerberus, mythical dogs stand as both protectors and punishers, bridging the living and the dead. Their appearances are often marked by glowing eyes, eerie silence, or bone-chilling howls. In myth, they warn of doom, escort souls, or guard sacred sites. Despite fearsome reputations, many also symbolize loyalty, protection, and spiritual vigilance, making them enduring figures in global mythology.