The article analyzes the mechanisms for the formation of social myths, as well as their functions pertaining to collective trauma, and puts forward three theses. Firstly, the characteristics which turn text into myth depend not on its formal or essential features, but rather on its perception (how the audience interprets the meaning of its constituent statements). Anything can become a myth. Usually, a myth consists of depictions, statements, and explanations, that is, descriptive utterances. However, to understand a myth is to know the preconditions not for the truth and/or falsity of its constituent statements, but instead the implementation of certain rules of conduct. A myth is a description interpreted as a prescription. This approach makes it possible to understand how various scientific or philosophical theories, initially aiming to describe and explain the world, turn into myths determining the social behaviour of the masses. Secondly, a myth turns descriptions into prescriptions through "storytelling". A myth is a narrative which inevitably uses certain tropes essential for all narratives. The form of the narrative makes it possible to establish a pseudo-logical connection between various "elementary statements" capturing real or fictional events. Without such a connection, there is no value and, therefore, no normative perception of these events. Thirdly, the transformation of a description or explanation of a traumatic event into imperatives is the most important form of the therapy of collective consciousness. A description of a traumatic event turning into a call for action and construction of a new reality presents perhaps the only way to get rid of the destructive consequences of psychological trauma, both at the collective and individual level.