From our foregoing historical review, it logically follows that Orthodoxy is not just one of the many forms of Christianity, along with the legitimate existence of other, non-Orthodox forms of Christianity; our Orthodox Faith is Christianity itself, in its most pure and one and only authentic form. When juxtaposed to Orthodoxy, all of the rest of the so-called Christian denominations are essentially alien to true Christian—that is, Orthodox—spirituality and the essence of the Faith.