This paper focuses on a specific aspect of political imaginaries: political myth. What are political myths? What role do they play within today commoditised political imaginaries? What are the conditions for setting up a critique of them? We will address these questions, by putting forward a theory of political myth which situates itself between psychoanalysis and political philosophy, in line with the tradition of critical theory that many still associate with the name of the Frankfurt School. We will first discuss (...) the notion of political myth by illustrating the contribution of both disciplines to its understanding and then, through a discussion of the notion of social unconscious, we will apply this analysis to a contemporary example of political myth, that of a clash of civilisations. (shrink)