A carnivorous person in real life has a desire to look into the future in order to avoid troubles or achieve what they want.
Therefore, so that people do not turn their gaze to God, the demonic nature, full of deception, has invented many ways to find out the future: for example, fortune telling, interpretation of signs, divination, calling the dead, frenzy, influxes of deities, inspiration, cards and much more.
And if any kind of foresight, as a result of some deception, is recognized as true, the demon presents it to the deceived as justification for the false proposal.
And the demonic trick points out every false sign to those who are being deceived, so that people, having departed from God, turn to serving the demons.
One of the types of deception was the deception of ventriloquists, who believed that their sorcery could attract the souls of the dead again into this life.
-Saint Gregory of Nyssa