I have been thinking in it alot and I have get to one conclusion, well, the last second before you die, you have a dream that never ends( like when you dream and then wake up, and it has just passed one minute.) so, lets say that if you are an assassin , you will dream in hell cause that is what people tell you when you die and thats what your subcoincience will tell you that there is where you should go, so if you believe in reincarnation you will probably beleive you are another human or something like that. thats IMO what happens before you die, when that second happens(which is like ALOT of time) you just die, you stop dreaming thinking. Just my theory.