How does the Trinity work? "Three persons, but one God? That doesn't make sense!" This video attempts to explain the basics of the Holy Trinity's structure according to the Nicene Creed and the Church Fathers and great theologians.
For a deeper understanding, read "Appendix D: The Filioque Controversy" in the Eastern/Greek Orthodox New Testament (free download) at http://www.orthodoxanswers.org/eob. (This video is not affiliated with OrthodoxAnswers.org.)