For new things new words are necessary for the sake of clarity of language so we may avoid the confusion inherent to the multiple meanings of various terms. The words spiritual, spiritualist and spiritualism all have a well defined meaning. To give them a new one, in order to apply them to the Spirits’ Doctrine would be to multiply the already-numerous causes of ambiguity. Strictly speaking, Spiritualism is the opposite of Materialism; all who believe that there is something within them that is more than matter or spiritualists, but it does not follow that they believe in the existence of spirits or in communication with the visible world.