... When you believe in dreams, it is certainly not surprising to fall into delusion. The Holy Fathers completely reject and command us not to believe in dreams, we who are passionate and conceited (V, 339, 467).

... Do not believe dreams at all and do not pay attention to them (I, 89, 139).

Believers should not have prejudices and believe in dreams; Dreams can be from enemies, in order to confuse a person with a future accident. Without God's Providence or allowance, nothing can happen to us, so we must be strengthened by faith and accept with humility what will happen, and not believe in dreams (I, 234, 438).

Often dreams reveal our passionate dispensation

Let her be afraid to believe in dreams, it is enough for her to calm her conscience; even if it is a grace-filled dream, it will not sin when, fearing delusion, it imputs itself unworthy of it; and the second dream seems to express a passionate disposition, as the Holy Fathers write about it: whoever is subject to which passion, the demons present similar things in the dream, for example: to the proud and ambitious – thrones, chariots, ascension to the heights; to the wrathful – beasts, quarrels and disputes; to the covetous, gold and silver, and the care of acquisitiveness; and to the lovers of the flesh – carnal notions. These dreams must be neglected; if we begin to judge, turning in a good way, we will be deceived and fall into pride; and if it is bad, then we will be confused and despair. There are grace-filled dreams, but they are humble, cleansed of passions, or suffer from some sorrows and misfortunes, for consolation; but even then they must be accepted with great consideration (V, 567, 753-754).

Through dreams, demons can lead to deception and delusion

Though the dream you have seen is flattering, you must not be carried away by deception, as if you were already worthy of it; but rather preserve thyself by humility, imputing such visions unworthy of thyself, then thou shalt not be harmed (III, 91, 194).

... Through these apparently well-manifested dreams, the enemy can present to deception those from which you can suffer no small harm to the soul. I know enough of such cases from experience and see them in history; our mind is still so debilitated and unpurified that it cannot distinguish truth from falsehood, and there are many mistakes that cause harm. True reasoning is given only to the humble, but St. John of the Ladder also said that it is impossible to depict its qualities in words; and you cannot think of yourselves as acquiring the gift of humility. I have personally told you a great deal, and now I also confirm: do not give faith to dreams, for your spiritual benefit (I, 83, 176).

Do not believe your dreams at all; the enemy will revolt you with them when you begin to believe; very edifying in the Athonite; read how cunning are the intrigues of the enemy, that even by God's permission, the cross can appear in dreams; but may the Lord preserve you from all his snares, right hand and snare (IV, 35, 74).

Из разговоров и действий людей бесы могут узнавать их намерения и возвещать другим для обольщения

Опять ты увлекаешься снами своими и даешь им веру, яко благодатным: поэтому ты достигла такого устроения и того стоишь; можешь ли избежать таких мнений, хотя весьма тонких и почти незаметных, а впоследствии обольстишься ими до ослепления и неисцельности? Нельзя ли было обойтись и без сна? Р. пришла к тебе, предложила свои деньги и желание; тебе нужда, ты принимаешь услуги и ее; благословение матери — и довольно. Для чего сон? Для твоего обольщения. Берегись! когда не принимаешь сна из смирения и опасения прелести, хотя бы был оный и благодатный, за сие не осудишься, а ежели это пре­лесть, то как оправдаешься, поверив ему? Мудрено же ли быть сему, когда враг видит все, происходящее в подлунной, конечно, видел и Р., к тебе шедшую, и из разговоров и действий мог проникнуть ее намерение и тебе возвестить (VI, 142, 234).

Сны, приводящие к отчаянию, явно от бесов

Святые отцы запрещают верить снам; а паче ког­да оные к отчаянию приводят; явно, что от бесов суть (VI, 41, 65).

Вера больше видения сделает