A book about how to be a real (not nominal) Christian in the twenty-first century with its challenges. The Christian will read not only about himself, but also about the one who is in the confessional from the other side - about the confessor, his hesitations and difficult decisions. A comprehensive vision of the situations from both sides - the penitent and the confessor - aims to help both to experience the sacrament of reconciliation more deeply and to restore a true life with God in the modern world.