Tertullian

“ But the Stoics are very fond of saying that God, in His most watchful providence over every institution, gave us dreams amongst other preservatives of the arts and sciences of divination, as the especial support of the natural oracle. So much for the dreams to which credit has to be ascribed even by ourselves, although we must interpret them in another sense. ”

“ We now find ourselves constrained to express an opinion about the character of the dreams by which the soul is excited. And when shall we arrive at the subject of death? And on such a question I would say, When God shall permit: that admits of no long delay which must needs happen at all events. Epicurus has given it as his opinion that dreams are altogether vain things; (but he says this) when liberating the Deity from all sort of care, and dissolving the entire order of the world, and giving to all things the aspect of merest chance, casual in their issues, fortuitous in their nature. ”

“ As for all other oracles, at which no one ever dreams, what else must we declare concerning them, than that they are the diabolical contrivance of those spirits who even at that time dwelt in the eminent persons themselves, or aimed at reviving the memory of them as the mere stage of their evil purposes, going so far as to counterfeit a divine power under their shape and form, and, with equal persistence in evil, deceiving men by their very boons of remedies, warnings, and forecasts,—the only effect of which was to injure their victims the more they helped them ”