Where a spiritualistic medium has escaped harm despite the practice of mediumship during the earthly life, the escape is only an illusory one. As soon as she passes out of the body at death, an unseen entity will fasten upon her and gain further control over her in such a way as to cause serious harm and bring much suffering during the post-mortem existence. And when the next birth in this world is taken, moral retrogression and spiritual retardation will be the final price to pay for this dubious practice. If its victim succeeds in escaping from mediumship and takes to a higher life, even then the unseen creature becomes her evil tempter, her hidden tormenter. Such are the creatures whom Jesus called devils, but whom our modern mediums in their pitiful ignorance invite into their very being and life. How many cases of madness, of immorality, of crime, of drunkenness, suicide, and even murder may be traced to these malevolent demons, through their suggestion, influence, or obsession?
-- Notebooks Category 16: The Sensitives > Chapter 13 : The Occult > # 139