
One of the late Pope Francis' central goals was to try and bring together the different strains of Catholicism. To do this, he used a particular device of ecclesiastical and institutional action: the synod, a council of bishops institutionalised in 1965 by the modernising Second Vatican Council to moderate and modernise the absolute power of the popes and the Roman curia in matters of faith.
Synods are not popular assemblies, but councils of the bishops of a country or a fairly large geographical area. Their members already occupy prominent positions in the church hierarchy.