"In the God-mind theory, God could leave a person? Is this the opposite of what you have been saying, that God and the person would be inseparable and the same? I could be misunderstanding you, sorry. Perhaps you could rephrase? Thanks : )"
I need to shove off to bed too. Within the framework of the theory, Christ should always be able to reach you. I.e. going into a steel box would not prevent Christ from being there. This is so, because there is no physical barrier involved, because Christ exists within your mind as a construct and obviously that makes 'Christ' part of you, within you. Yet, this does not mean you would be unable to conceive of Christ leaving you. You could, for various reasons feel forsaken.
Think too of the witnessing you do about Christ, what do you actually say to the other person? You may share thoughts you've picked up from the Bible. If you've studied that material and it has influenced you -- that would be natural. But it is not likely you would suggest non-personal concepts. Rather thoughts will tend to focus on person-centric. As Jesus said, "I am with you." Could you imagine, someone speaking about Christ in non-personal ways? For example, would it not seem very odd if a person said, "Christ would like to help you, but he doesn't know what you need, he has never met you." Or "Christ isn't interested in us right now, he is working on plans that he'll be acting on a few thousands years from now."
What all this boils down to is the inescapable fact that all our concepts of others are ultimately within our noggins. We do not even need someone to be physically present for us to think about them. Is it possible to have thoughts about purely imagined individuals who otherwise do not exist in reality? We can, otherwise we could not enjoy watching a fictional character in a movie. Can Obi-Wan Kenobi come with us into a steel box? If we have watched Star Wars and have concept of the character, he can go wherever we go. The concept of him is in our minds -- put there by George Lucas.
But Christ is obviously different than Obi-Wan. Unlike Obi-Wan the concept of Christ, relates to a number of very important things to us personally. Such as a sense of justice, being loved, being supported, having a purpose, or even helping us survive our ultimate demise -- death. I believe it is for that reason the concept tends to drift towards the ego-centric. You might find this strange, but if Christ is truly personal towards the believer, for the most part, even as an atheist, I think that is healthy. It also the importance of these things to us personally, that makes Christ powerful, inspiring and a motivator, even if he does not exist apart from our us. I.e. Godly power without actually having to exist -- now that is overcoming an amazing deficit! (I really do mean that sincerely)
Where we got in trouble as Witnesses was believing that our ability to please Jehovah God rested on unquestioned obedience to Christ's Brothers as represented by the Governing Body. In that model we wound up handing over our intellect to another who could abuse it for their own selfish interests.