Spirits are incessantly in relation with men. The
good spirits try to lead us into the right road, sustain us under the trials of life, and aid us to bear them with courage and resignation; the bad ones tempt us to evil: it is a pleasure for them to see us fall, and to make us like themselves.

The communications of spirits with men are either occult or ostensible. Their occult communications are made through the good or bad influence they exert on us without our being aware of it; it is our duty to distinguish, by the exercise of our judgement, between the good and the bad inspirations that are thus brought to bear upon us. Their ostensible communications take place by means of writing,
of speech, or of other physical manifestations, and usually through the intermediary of the mediums who serve as their instruments.

Spirits manifest themselves spontaneously, or in response to evocation. All spirits may be evoked: those who have animated the most obscure of mortals, as well as those of the most illustrious personages, and whatever the epoch at which they lived; those of our relatives, our friends, or our enemies; and we may obtain from them, by written
or by verbal communications, counsels.