In this paper I argue that the pessimistic reading of Horkheimer and Adorno’s Dialectic of Enlightenment, which suggests reason is ensconced within the domination of myth, misses a key component of the authors' argument. Specifically, it misses the possibility that the liberation from the heteronomy of myth might occur via a critique of myth. Using Owen Hulatt’s reinterpretation of Adorno’s account of the tension between mimesis and self-preservation as a point of orientation, I show that while myth for Horkheimer and Adorno is synonymous with a heteronomous form of life, they simultaneously recognize it as an incomplete but largely untapped mediator of the history of human experience (via language), and thus a promising source of rational self-knowledge. Specifically, myth can illuminate fragments of both the contingent factors that led to human sociality becoming entwined with domination, while also offering momentary reflections of the kinds of life that were relinquished in the drive for instrumentalised survival. I propose that for Horkheimer and Adorno it is myth’s linguistic mediation between a community of speakers and their (often violent and ambiguous) pasts that is unique. It is thus myth’s capacity to offer a meditation on those other possibilities of human existence that presents a renewed chance of enlightenment.