The Book of Dreams and Ghosts
Andrew Lang71CHAPTER IV Veracious Waking Hallucinations not recognised by Science; or explained by Coincidence, Imposture, False Memory. A Veracious Hallucination popularly called a Wraith or Ghost. Example of Unveracious Hallucination. The Family Coach. Ghosts' Clothes and other Properties and Practices; how explained. Case of Veracious Hallucination. Riding Home from Mess. Another Case. The Bright Scar. The Vision and the Portrait. Such Stories not usually believed. Cases of Touch: The Restraining Hand. Of Hearing: The Benedictine's Voices; The Voice in the Bath-room. Other "Warnings". The Maoris. The Man at the Lift. Appearances Coincident with Death. Others not Coincident with Anything. In "crystal-gazing" anybody can make experiments for himself and among such friends as he thinks he can trust. They are hallucinations consciously sought for, and as far as possible, provoked or induced by taking certain simple measures. Unsought, spontaneous waking hallucinations, according to the result of Mr. Galton's researches, though not nearly so common as dreams, are as much facts of sane mental experience. Now every ghost or wraith is a hallucination. You see your wife in the dining-room when she really is in the drawing- room; you see your late great-great-grandfather anywhere. Neither person is really present. The first appearance in popular language is a "wraith"; the second is a "ghost" in ordinary speech. Both are hallucinations.

