This is a different kind of Trinity thread. I am starting it, not to debate whether the doctrine of the Trinity is a true doctrine or a false doctrine, but to prove that mainstream, traditional, orthodox Christians don't really even agree among themselves as to what this doctrine is stating.
In another thread, Scott told me that, as far as he's concerned, Latter-day Saints are actually trinitarians, but just don't understand the doctrine well enough that we are able to realize this about ourselves. I agreed that we (LDS) don't understand it; it doesn't make sense to us, and that we consequently reject it. While I think that we have more in common with mainstream Christianity than mainstream Christianity is willing to concede, and while I've got to admit that I'd rather be told that my beliefs are Trinitarian in nature than that I believe in an entirely "different Christ" than "real Christians," I still think that Scott's wrong in considering us Trinitarians.
I would like to hear from as many "mainstream, traditional, orthodox" Christians as possible on this subject. My purpose is to see how closely Trinitarian Christians agree among themselves as to what the Trinity really is. In my experience, I've heard so many contradictory explanations from people who all claim to believe the same thing, that I honestly don't know whose understand is accurate and whose isn't.
(Thanks to Lord Roghen for the diagram.)