Christian faith becomes a matter more of decision than of inheritance in our modern societies. Its practice is strongly conditioned by the cultural tendency to an intense individual assertiveness widespread in those societies. Pastoral work shows how diverse and irregular the itineraries of Christian believers can be. Church communities must verify their authenticity. They need not only to deepen the identity of Christian faith, but also to study the cultural tendency to a more independent use of freedom. In fact, Christian faith acquires a new appearance through its encounter with this tendency: it comes out as an event more informed by the individual’s experience and sensitivity. By paying attention to this, Church communities will be more able to discern the multiple ways people decide to believe today.