According to the thesis of the laicist Enlightenment culture of Europe, it is only the norms and substance of this same Enlightenment culture that can determine the identity of Europe, and it follows that every state that accepts these criteria can belong to Europe. Ultimately, it is unimportant to know on which framework of roots this culture of liberty and democracy is planted. And we are told that this is precisely why the roots cannot be included in the definition of the bases of Europe—for these are dead roots that do not form part of today's identity. Accordingly, this new identity, which is defined exclusively by the Enlightenment culture, entails that God has nothing whatever to do with public life and with the foundations of the state (p. 37).
The Pope makes this observation in reference to two phenomena: the exclusion of any reference to the Christian roots of Europe or God from the European constitution, and the consideration of new member states in the European Union (he specifically refers to the case of Turkey). The Enlightenment culture can be found, of course, right here at home in the U.S., or in Central America, or in almost any place in the world. It is simply the worldview which holds that certain achievements of the Enlightenment period (the solidification of the notion of human rights, the freedoms of citizens, democratic rule) have superseded the need to anchor our understanding of ourselves in any transcendent reality.
This makes everything logical and even, in a certain sense, plausible. For what higher good could we wish than that democracy and human rights be respected everywhere? But at this point, we must ask whether this Enlightenment laicist culture is truly the culture—finally revealed in all its universality—of a reason that is common to all men, a culture that must be accepted everywhere, even if it is rooted in a soil that is historically and culturally diverse. And one must ask whether this culture is truly complete in itself, so that it does not need any roots outside itself (pp. 37-38).