I can agree with you on the body being the difference as a relative answer allowing also: "the body determines as the containing vessel's parameters." iow= cannot contain the wholeness of God within. It is a contradiction. Therefore God; as in a vessel is also the WORD and not the WORD-grasped by us in the parameter of relationship, of personality-as what we know;conceptualize, limit or constrain="SON". Right now this humanity's highest perceptions of relationship potential here. yet also true at the same time Divinity is beyond here..eternally.
God as first source and center then also truth-God IS Personality. We perceive personality as unique to the vessel. In this -way- This is the vehicle we use to perceive closeness, unity,feel at-one-ment love of, with, and for God. God so loves you. We can 'know' God to the limits of our abilities to grasp truths, a willingness to reach for truths as yet unperceived by ourselves.. Yet still God is more and therefore not the Son only. nor the Father only. nor the Holy Spirit only.
God as All in All is the Christ-yet the Eternal Son is with the Father always-how this is so, still a mystery. We'll get there, in many ways look how far we've come. We have Dominion here. So how we treat our home is in direct relation to how spiritually mature; ethically aligned we are with spiritual based truth-not trying to be a scientist here, I speak from the spiritual pov through limited mortal yet highest grasps of truths obtained in this personalized vessel thus far.