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Unity? Christians build a personal relationship with God, "Spiritually", through prayer, in unison with the Holy Spirit, as well as by doing God's work here in this life, in Jesus's name.
Christians who direct their Faith, not toward men of the world, but to God only, are in unity. There are church's available, that for the most part, teach the value of the Holy Spirit. Once you find one, .....you will not want to leave :-)