Evil spirits are not only able to inject thoughts into the believer's mind, but they can also form different kinds of pictures in his mind. Some of these pictures are very clean and good, which the believer likes. But some are very filthy and sinful and are abhorred by the believer's conscience. Whether it is something good or bad, something the believer likes or abhors, he has no power to stop these pictures from coming into his own mind. Past experiences, future predictions, and many other things are always lingering before his eyes in spite of the opposition of his will. The believer's imagination has fallen into passivity; he can no longer control his own imagination and has yielded to evil spirits who are now using his imagination at will. A believer should realize that everything that is not produced by his own mind is given to him by supernatural spirits.
Some dreams are natural, but some are supernatural. Some belong to God, and some belong to the devil. Except for the dreams that are caused by man's own physiology or mind, the rest are supernatural. If a believer's mind is open to evil spirits, many of his dreams at night are probably the "pictures" he obtained during the day in disguise. Evil spirits make him see the pictures during the day and dream about them at night. If a believer wants to check if his dream is from evil spirits, he only needs to ask, "Has my mind been passive during the day?" If so, the dream which he receives is not trustworthy. Dreams from God always make people normal, peaceful, stable, reasonable, and sensible. But dreams that come from evil spirits are all strange, vain, false, foolish, and cause people to become elated, stupefied, confused, and irrational.
The evil spirits can give a believer many strange dreams, some of which are very good, because his mind is passive. If a believer's mind has fallen into passivity, all of his dreams will not be from God, neither will they be natural; instead, they will be from evil spirits. At night the mind is naturally not as active as during the day, and it becomes more passive. Then evil spirits will seize the opportunity to accomplish their goal. These kinds of dreams at night make the believer dizzy and dampen his spirit when he wakes up in the morning. Sleep does not seem to increase his vigor, because while he is sleeping, evil spirits are affecting his whole being through the passive mind. All who frequently suffer from dreams at night have evil spirits working in their mind. If a believer single-mindedly rejects the evil spirits' work both during the day and night, he will soon be free.