2. I've accepted Jesus Christ into my heart (i.e. spirit possession?)...
Sounds kooky to me...
Speaking on the ineffable usually comes off as kooky.
There's plenty of documentation hinting that the Jesus character may have been pulled from much older stories. And whatever it was pulled from might also be allegory.
I'll bet my money it's been a simple programming code all along (or a spiritual law), rather than a person.
Mankind probably stumbled upon the inspiration, and identified with it as a person because it's thoughts were/are so foreign that it must be another person somewhere. Then Mankind probably wrote it into stories as such.
So "accepting Jesus into your heart" needn't have anything to do with whether "Jesus" actually existed. And it might not even qualify as "spirit possession", we don't know. Yes people will say they know, but they don't. And just because they report beyond what they can truly know, doesn't mean the thing(Source of that inspiration) they're reporting on isn't real.