"Like ghosts, words are disembodied presences. Therefore, in some senses, talking about ghosts in literature is as hopeless (and perhaps also as important) as talking about words in literature, or ideas in literature. All stories are ghost stories, if only because each word, each random collection of syllables, is intended to conjure forth an unreal reality, to embody and animate a strange imaginary entity that is both there and not there, actual and not actual. Writers try to capture ghosts out of their own experience, snaring them in print so as to release them into readers' minds - or better yet, into the dark corners of readers' bedrooms. "
"The National Uncanny: Indian Ghosts and American Subjects", Renee L Bergland (pp 5-6)