What is Synod? First of all, it's a spiritual process led by the Holy Spirit. It is a 2-year process of listening and dialogue which begun in Rome in October 9-10, 2021. The entire process will end in 2023. 

Pope Francis invites the entire Church to reflect on a theme that is decisive for its life and mission. "It is precisely this path of synodality which God expects of the Church of the third millennium." This journey, which follows in the wake of the Church's "renewal" proposed by the Second Vatican Council, is both a gift and a task: by journeying together and reflecting together on the journey that has been made, the Church will be able to learn through Her experience which processes can help Her to live communion, to acheive participation, to open Herself to mission. 

To learn more about the Synod process please visit the Vatican Synod process website.