Within the European public space that continues to secularize, the conditions of faith are undergoing profound processes of metamorphosis and reconfiguration. On the one hand, the new situation of diaspora, marginalization and exculturation of Christian tradition tends to dialectically generate ideological closures, culture wars and cognitive defenses. On the other hand, these processes of transformation impose a critical reflection on what remains of the "need to believe" in post-traditional contexts, that is, on that individualized, indeterminate, fluctuating, but not entirely evaporated post-secular faith that seems to resist both technocratic nihilism and religious fundamentalism in their various expressions. The philosophical question concerns the possibility and responsibility of religious experiences in the European democratic space that are not only self-critical and reflective but also deeply affective. Starting from the assumption that every believing subject is also a desiring subject, through a dialogue between biblical exegesis, continental philosophy and contemporary psychoanalysis, an attempt will be made to propose an analysis of the conditions of believing in present-day secular Europe.