In one of his masterpieces A Secular Age, Charles Taylor has not only redefined the concept of secularization from a whole new perspective but also presented his crucial reflection on the persistent dynamics of religious criticism in a secular world. In a world where the role of Religion is gradually losing ground, the urgency of a critical reflection on the stated subject matter is no doubt warranted, especially to those who bear the Catholic traditions and background such as Taylor. The reflection and the proposition of a Catholic modernity that Taylor has put forward serve two purposes: to shade new light on an old issue, and to put the Catholic faith into a test of resilience. In other words, Taylor would like to find out how the Catholic faith would bear itself and survive in a more and more complex and secularized world. This paper discusses about the stated religious concern. It is within the framework of the stated concern that the dilemma of Catholic's localization in China (Taiwan) is further discussed, and the possibility of a paradigm shift between localization and secularization is carefully thought through.