The paper explores Sreten Petrović’s contribution to Marxist aesthetics. Petrović developed his theory within the framework of the Yugoslav Praxis School, although he was not a member of it. Petrović followed Danko Grlić, a prominent member of the Praxis School, in explaining art as a specific emanation of praxis – free, creative, autonomous and self-emancipatory activity beyond the commodity form of capitalist society. Art was thus understood as the liberation and emancipation of Being and its essence. However, Petrović also introduced (...) a novelty – he claimed that art can never be fully understood nor explained. According to him, the only true Marxist aesthetics, given our limited cognitive abilities and the capitalist imperative of producing commodities, would be to limit aesthetics to meta-aesthetics and affirm the ‘critique of the aesthetic mind’. We argue that by limiting aesthetics to meta-aesthetics Petrović is following the young Wittgenstein and his proposition that the world is unintelligible to philosophy. Accordingly, we claim that Petrović’s contribution should be seen as an important contribution to Marxist aesthetics. (shrink)