The political theorist Roger Griffin warns against the "hyperinflation of clerical fascism".[35] According to Griffin, the use of the term "clerical fascism" should be limited to "the peculiar forms of politics that arise when religious clerics and professional theologians are drawn either into collusion with the secular ideology of fascism (an occurrence particularly common in interwar Europe); or, more rarely, manage to mix a theologically illicit cocktail of deeply held religious beliefs with a fascist commitment to saving the nation or race from decadence or collapse".[36] Griffin adds that "clerical fascism" "should never be used to characterize a political movement or a regime in its entirety, since it can at most be a faction within fascism", while he defines fascism as "a revolutionary, secular variant of ultranationalism bent on the total rebirth of society through human agency".[37]