Whether it is a move of the Holy Spirit toward greater unity or cultural appropriation on a massive scale, old school Catholic practices are in.

Pope Francis will visit Bulgaria and North Macedonia from May 5 to 7, two majority Orthodox countries with very small Catholic populations.

This week on "Inside the Vatican," we cover the ecumenical retreat the Vatican is hosting for South Sudanese leaders.

“Walk together, work together, love each other.” That is how Pope Francis described the journey of building Christian unity in the 21st century. Michael Rudzena is walking that path as part of the John 17 Movement, an ecumenical group dedicated to responding to the prayer of Jesus that “all who believe in me be one.”

“It’s a pretty common belief here in the South that Catholics are not Christian.”

That many religions exist in the world is a fact, but what that plurality communicates to believers about God is a question that theologians are still discussing.