Spectres are often described as ghostly apparitions or spirits of the deceased. They are typically associated with haunting locations and are believed to manifest in various forms, such as translucent figures or shadows. Many cultures have folklore and legends surrounding spectres, often depicting them as remnants of individuals who have unfinished business or unresolved issues. In literature and popular media, spectres are frequently used to explore themes of loss, memory, and the afterlife. They can symbolize the lingering presence of the past, serving as reminders of those who have passed away. Notable examples of spectres can be found in works like Charles Dickens's "A Christmas Carol," where the Ghost of Christmas Past serves as a guide to the protagonist's memories.