What would happen if the main flame of consciousness was transfered to the astral body and never came back. What would happen if a person astral projected and just decided never to come back to their body? Would they fall into a coma? Would they die?

As for the silver cord interpretation, I think that is the mental manifestation of the concept of being tethered to the body. I am sure most people like their body and mental concepts manifest physically. A lot of literature is filled with that concept. Couple those two together, it manifest. When I astral project, there is no cord. In fact I am not aware of my physical body. My body has been slapped, punched, pinched, etc and that did not even register to me while I was projecting. My perception of time is skewed, so I spent what seemed like to me a short time in astral mode, but in actuality was about two days. My family freaked. It was like I was asleep, but they could not really wake me up. What was even creepier is that I often sleep with my eyes open. The same thing happens when I am projecting my consciousness away from myself when I am remote viewing, or scanning a person or an object, or managing mental links anf backtracking. It is as if I lose all connection to my physical body. I am no longer aware of what is going on.

Anyways, what would happen if I lost track of time and did not return for a while. What would happen if a person just decided never to come back? Would their body be somewhat comatose like mine was or would they simply die?