After demonstrating that within the magisterium of John Paul II there was an identification between synodality and collegiality, the author highlights that — in the teaching of Pope Francis — synodality concerns the whole Church, as a part of its «constitutive dimension», and that the collegiality of bishops is included within it. Therefore, the sensus fidei of the faithful assumes a new importance: the totality of the faithful, united to their pastors, cannot make mistakes in their belief. Through
this perspective, the Church appears both as an inverted pyramid and as a communion of concentric circles. The Synod of Bishops, in its new structure, implements this synodality within the consultative/preparatory phase of the People of God through the organs of participation in the particular and local Church: in the  preparatory phase (by means of discussion and discernment), as well as in the implementation phase. Relevant  ecumenical repercussions of this same reform of the Synod of Bishops and possible developments are also shown.