The article is based on a research on religious profiles of students at the Pontifícia Universidade Católica of Sao Paulo, Brazil, conducted since 1997 by teachers of the Department of Theology and Comparative Religion. In terms of theory the project is influenced by the approaches of Torres Queiruga, Karl Rahner, João Batista Libânio, Schillebeeckx, Max Weber, Georg Simmel and Danièlle Hervieu-Léger. One of the core category is “religiousnessâ€ defined as a historically and culturally determined human feature to construct meaning by referring to the totality of existence. In its first part the article elaborates a concept of contemporary youth. The second part analyzes its relation to religion. The final part summarizes some of the projects main results. Maybe the most important finding is an often indicated intense “floatingâ€ religiousness which can hardly be expressed through a common religious symbolic but which is frequently associated with an diffusely qualified “energyâ€ and one can assume that those who had made spiritual experiences of that kind are in an albeit “openâ€ process of reformulation of their former more traditional religiousness.