@JoshuaTCharles The Good, True, and Beautiful also show up in this trinity of persons - first person/subjective/beauty, second person/intersubjective/good, and third person/objective/truth
We have the literal interpretation of the trinity as the first, second, and third person of God, but in a mystical way the second person arrives in the I/thou relationship. I need to work out how to make a more formal argument so bear with me, as I donโt want to make blasphemies. But the way your post reads to me, it connects with the connotation of the intersubjective โsoulโ that arrives in the space between and around two (or more) subjective souls. I think this idea becomes useful as an interpretive frame for the transcendent soul you refer to that only arrives in the particular arrangement of โseparateโ souls in relationship, where the ideal is the I/Thou relationship of a soul with Christ, and shows up as the intersubjective โweโ of second person relationship subjectivity - the common subjective/intersubjective experience of merging with another. This is something that has been worked out quite formally by Ken Wilber and in conversation with Father Thomas Keating, as the 1-2-3 of God, the first, second, and third person of God.