“Synodality is a style, it is walking together, and it is what the Lord expects of the Church in the third millennium” (Francis). The specific motto and wording of this study in the quoted “programme” thought of Pope Francis, articulated in the Address to Members of the International Theological Commission (2019). The Pope expresses appreciation for the extensive work of the Commission crowned with the “theological clarification” of the mentioned idea, and above all by demonstrating the importance in the perception of the mission of the Church today. If, in the opinion of the Holy Father, factual and competent expert argumentation, step by step, reveals the truth that “a synodal Church is a Church of participation and co-responsibility,” ...