A thousand years ago, the church experienced a time of tremendous upheaval called the Great Schism. The one faith became two churches, East and West, and the course of world history was forever changed. And it all swirled around one Latin word in the Nicene Creed, filioque , that indicated the Holy Spirit proceeded both from God the Father "and from the Son." From the time that phrase was officially instituted onward, the Holy Spirit's place in the...