You ever wake up really sad and scared like something really bad just happened in a dream but you cant remember the dream you feel like you feel when you miss someone alot i think when we wake up feeling like that its because we died and our conciousness gets lost in a way and the only place it can end up going is back to another time you dont have to even just be waking up to feel this feeling it can happen at anytime the confusion and sadness of the finality lingers for a few minutes then goes away i think thats what death is or at least its part of death. i also believe we are all one in death every living thing ever all one so nomatter what happens in life it doesnt matter too much because we are all experiencing all of it at once in death