How dead is dead?

Yeah, a dismal thing to blog about, but I have some concerns here. I always figured if you were dead you were just dead. I've read about people who 'see the light' and are sent back to finish living. Since I died from a seizure in the hospital a few weeks ago, and I'm back with no light around, I began to puzzle over this. My good friend Charles, died in surgery - he left his body and floated up at the ceiling while they worked on his body. Then he went back into it. No light there. Mine was a really bad seizure (just found out I am having those and hope the meds are stopping them) and my smart child called the hospital to tell them I had dropped the phone and was making weird noises - told them to go check on me. It took them awhile to make me start breathing again, but I didn't see any light. When I told my doctor I had died in the hospital, his first question was did I see the light - sisnce another of his patients had died and really seen the light. Who knows? So I have decided there is really dead, maybe dead, sorta dead and somewhat dead. Not sure where I was in this list, but I'm really glad I'm not dead. Ideas, anyone?