The notion and theory of legal pluralism have been witnessing an increasing interest on part of scholars. The theory that originates from the legal anthropological studies and is one of the major topical streams in the realm of socio-legal studies slowly but steady started to become a point of departure for other disciplines. Unavoidably it has also gained attention from the scholars in the realm of the law of the European Union. It is the aim of the present article to illustrate the legal reality in which the law of the Union and the national laws coexist and intertwine with each other and, subsequently, to provide some insight on the manner national judges personally construct their own understanding of this complex legal architecture and the problems they come across in that respect. In that sense, the present article not only illustrates the new, pluralistic legal environment that came into being with the founding of the Communities, later the European Union, but also adds another dimension to this by presenting selected, empirical data on how national judges in several Member States of the EU individually perceive, adapt to, experience and make sense of this reality of overlapping and intertwining legal orders. Thus, the principal aim of this article is to illustrate how the pluralistic legal system works in the mind of a national judge and to capture the more day-to-day legal reality by showing how the law works on the ground through the lived experiences of national judges.