During a séance, it is called an indirect voice phenomena when the voice of the spirit comes from the throat of the medium. Even though it uses the medium’s breath and vocal chords, it may sound dramatically different from the medium's normal voice.
Readers, please enjoy this guest blog post by Sandra Kynes, author of several books, including The Herb Gardener's Essential Guide, Plant Magic, and the new Witches' Encyclopedia of Magical Plants, among many others.
Although a few old books...