Title of a novel by Richard Bach, who also wrote Jonathan Livingston Seagull:
ONE belongs to a venerable genre of mythopoeic works including among many others The Divine Comedy, The Aeneid, Pilgrims Progress, The Ring Trilogy, the fantasies of C.S. Lewis and Lilith.
The story has as its central thesis the oneness of the human race. A Christian might legitimately consider it as a commentary and elaboration of the 17th Chapter of John, where Jesus prayed that we might all become one as he and the Father were.
A sub-thesis, subordinate only to oneness is the place of love as the summum bonum of life. Bach does little to explicate the glowing height of love between the soulmates, Richard and Leslie (taken of course from the real Richard Bach and his wife Leslie). It became more problematic when the real lovers divorced some time after the book's publication.
(Bach had a very rational explanation-- namely that soulmates don't last forever; I suppose he claimed several and proved to be given to the Hollywood malady of serial monogamy. IMHO writers of really good novels too often seem to expend too much of their own goodness on their fiction.)
As a commentary on John 17 I did find it convincing. "We are members one of another."
Whether Jesus identified his 'neighbor' with his 'other self', I don't know, but to me it seems likely.
Love God, neighbor, and self: the atheist Erich Fromm found that ineluctable truth, and perhaps Richard Bach, whatever his faith or absence thereof was, had found it, too.
Do our intellectual propositions about God matter that much? Mine does, but I have to wonder about Fromm and Bach.
Thanks to my dear friend, Julie, for putting me on to this interesting topic.