A "ghost portal" refers to a theoretical or fictional gateway that allows spirits or supernatural entities to travel between different realms, such as the living world and the afterlife. This concept is often explored in various forms of media, including movies, books, and video games, where characters may encounter these portals during their adventures. In folklore and paranormal studies, ghost portals are sometimes associated with locations that are believed to be haunted or have a high concentration of spiritual activity. These sites may include old buildings, graveyards, or natural formations, where people report experiencing unusual phenomena, such as sightings of ghosts or spirits.