Hi.
It's not true to say that I imagine person as a human being. I imagine person as a 'soul' (or similar term, consciousness if you prefer), of the same nature as 'God', incarnated into a human physical body. This appears to be similar to what you say here: “Human being is not a person because of human body or human mind (which is essentially and literally human body), but because of first person perspective which is no other than God in person”.
I assume you would agree that what you are saying here is your worldview, just as Baron and I were elaborating ours.