Sebastian Duhau, a synod observer from Australia, and Emilie Callan, a synod observer from Canada, participate in a pilgrimage hike from the Monte Mario nature reserve in Rome to St. Peter's Basilica at the Vatican Oct. 25. Cardinal Christoph Schonborn of Vienna said synodality refers to all the baptized taking responsibility for the church and its mission, each according to his or her talents and role within the church (25 Oct. 2018). Photo credit: CNS/Paul Haring