The process of separation involves drawing one’s own border and striving for one’s own identity. But within the framework of the separation process, this can only be done in the simplest way: using the psychological mechanism of splitting. Us and Them. Good and bad. Or We are right – He is wrong. Separation processes are associated with aggression. If the group unanimously considers itself the best and right in its decision, and you want to object. Because you don't agree. Maybe you didn’t dare to do this and remained silent. The group will react to your words in such a way, words in such a way that you want to shut up. And perhaps it will work the first time. Maybe they will pointedly ignore you, or start making fun of you. If the issue is fundamental to you, the response will most likely be harsh. A person who finds himself alone against a group is often gaslighted. The word "Gaslighting" arose after the release of Cukor's film "Gaslight", in which a husband wants to take possession of his wife's jewelry and convinces her that she is crazy. The process turns out to be a group one, because there are two maids on the husband’s side. One, due to deafness, does not fully understand what is happening; the owner flirts with the other. (Thus, we see how in a group the one who is gaslighted finds himself alone, without support.) The apartment has gas lighting, and the lamps sometimes begin to flicker. Every time the husband tells his wife that she is imagining things. In fact, he sneaks into the attic from the back door, turns on the light there and looks for jewelry. The gas pressure in the pipes weakens and the lamps begin to flash. The wife feels great relief when the policeman who comes to the apartment asks: “Why are your lights flickering?” If the gaslighting process is directed against you, do you understand what is happening? They literally drive you crazy. You object, and they answer you: “What are you talking about? There was nothing like that." “I’m scared to talk to you: you’ll always distort and twist everything.” If we are not confident enough in ourselves, then, subjected to such pressure, we begin to doubt: maybe I’m really confusing something? Am I remembering wrong? Distorted? The splitting mechanism is triggered: “We are adequate people – and you are inadequate.” “We see everything as it is, but you distort it.” When a group merges in a symbiosis of like-mindedness, discrediting an opponent can take place according to various indicators. For example: “You are evil - we are good.” Or “We are competent, but you are not.” In any case, a split into “we” and “you” inevitably occurs. Direct pressure is also possible: “Why don’t you want to agree with the opinion of the majority?” When describing this process, I use the pronoun “you”. Perhaps the reader has found himself in this position and can vividly remember how disgusting he felt. Or maybe you were among the majority who spoke out against one person in order to influence him. Most likely, your actions are remembered as justified, and this person is remembered as very unpleasant. (“It’s your own fault.”) Unfortunately, this is also a common component of such processes. I used the pronoun “you” so that everyone can imagine what it would be like to be a victim of gaslighting. This article looked at the processes of confrontation in all-against-one groups and what happens when they do so. Particular attention was paid to the so-called gaslighting, when someone against whom the rest of the group is playing is told that he is inadequate, perceives what is happening incorrectly, and sees everything distorted. This is one of the options for the mechanism of splitting in a group. Gaslighting is a process that is almost always completely conscious and very sophisticated. If a group of people is gaslighting, that group is in cahoots. Often conscious and spoken (when participants in a conspiracy all together decide to teach someone a lesson). But sometimes a silent “collusion” may not be expressed. Like in the movie Gaslight, where one of the maids did not support the victim because she did not understand what was happening, and therefore sided with)