 In the book "Niesamowita Słowiańszczyzna" ("Uncanny Slavdom"), Janion deployed Edward Said's concept of Orientalism to prove that in the Middle Ages Western Slavs underwent colonization by Roman Catholicism.According to Janion, Poles' entering the realm of Latin influence severed them from pagan tradition and has become for them a source of trauma, which continues to affect their present collective identity.This interpretation has been challenged by Dariusz Skórczewski as a misapplication of postcolonial theory and a misinterpretation of the role of Christianity in the Polish lands.