Perhaps it is the instinctive factor of living things, the vast majority of people have an inexplicable fear of death, people who tried to live forever abound in history, but none succeeded, since death has become inevitable, what happens after death?
Therefore, all kinds of conjectures about the world after death were born, what kind of heaven and hell reincarnation? Try to regulate the words and deeds of the living, but in fact, many people are not interested in whether they can enjoy happiness in another world, just want to have their families with them, after all, the grief and fear brought by death are largely to say goodbye to their loved ones. Scientists have their own answers.
Scientists generally believe that there is no so-called soul, human consciousness is generated by the brain, when human life comes to an end, the human brain will also stop working, just like a mobile phone out of battery or destroyed can not send a signal, so the actual feeling of death is somewhat similar to a deep coma or the kind of sleep that is very deep and not dreaming (scientific speculation, life is precious do not practice), so it will not go anywhere, there is no so-called netherworld, heaven, hell and can not see dead relatives.
Of course, there are objections to this statement, but in any case, it is more important to cherish the existing time and care for the relatives and friends who are still alive than after death.