I had read many years ago a book On the state of death eminent, it was pationant. A journalist went around the world in search of people who had lived this experience. There is a reassuring side to believe that we can get out of our body and found our loved ones. Death is the finality or a stage of life?
It's an interesting but scary question, and if it was just the end .....
Maybe we ll know it when we ll die ...