The second meeting of the 16th Ordinary General Assembly of the Synod of Bishops begins this week at the Vatican. Like last year's meeting, it's a four-week-long gathering of 368 voting delegates -- with scores more of nonvoting participants -- from six continents to address the theme "For a Synodal Church: Communion, Participation, Mission" and experience synodality, a posture of listening, accompaniment and communion in the church.