In the so-called postmodern society, the individualism issue has become a problematic reality, because, in the wake of a long process that started in the Modernity, - according to Gilles Lipovetsky - a personalization process arose, wherein individualism is a preponderant factor, and wherein the human being adopts the mythical image of Narcissus, increasingly becoming closed in itself. From this results a society marked by individualism, anti-fraternity and anti-solidarism, wherein the individuals go to an emptying of sense of life. But the human being, man and woman, image and likeness of God, has been called to work out a project of fraternity, counterpointing with community destroying narcissism. In this dissertation, having in view the possibility to overcome the mentioned narcissism, we try to unveil the underlying sin, and we propose the redemptive way of openness to the grace of God, as the theological basis of the fraternity project, in faith. In our reflection we base ourselves on the thoughts of González Faus and, for the execution of this project, we also make use of some mediations which are indicated in this study.