Lonergan thinks that human beings recognize the existence of a pluralism of cultures in the twentieth centuty. He argues that each culture has one or more religions. Religion is embedded in culture. Therefore, religion is also plural. The recognition of the pluralism of culture provides a new way to understand interreligious dialogue. It means that pluralism is intrinsic to each cultural world and therefore interreligious dialogue is understood as including inter-cultural dialogue. In addition, Lonergan thinks that interreligious dialogue has to be conducted dialectically. In other words, the most important thing in interreligious dialogue is to be aware of the problem of authenticity and unauthenticity in religious experience, in culture, and in their expression. The test of authenticity is in observing peoples' deeds, not merely in understanding their theories. The result of religious dialogue will be filled with surprises, since it is an empirical process.