There are many explanations for ghost phenomenon in the scientific community: one explanation is due to psychological effects, including cognitive errors caused by illusions and hallucinations; Another explanation is psychopathology, that is, brain organs are damaged, leading to forgetfulness and mental disorders. The third possibility is related to environmental changes, mainly electromagnetic field changes. He believes that human living space is full of electromagnetic waves. The human brain is an electrochemical organ, and bioelectrical signals transmit information between brain cells. Strong electromagnetic fields will affect those signals and produce strange vision, touch and hearing. Electromagnetic fields act on people's brains, which can also lead to different emotions, such as fear and nervousness, and make people see ghosts abnormally.
According to superstitious legends, dead souls are ghosts. There are three criteria for judging whether a theory is mature or not. They are:
Whether the results of the original theory can be reproduced; Can you explain the result that contradicts the original theory? And whether new testable predictions can be made.
Because it is impossible to verify and predict how to verify, "ghost existence" is not a scientific theory or a scientific hypothesis, but a personal hypothesis. The scientific method also has Occam's razor principle, that is, deleting all unnecessary redundant "entities" and leaving the least. "Ghosts exist" is an unnecessary hypothesis.
Ghosts don't exist, at least the "ghosts" people imagined before don't exist. The ghosts mentioned by the ancients sometimes refer to the activities of consciousness, spirit and psychology that we talk about today. They are the result of physiological activities of the brain and the product of physical and chemical reactions. Without the brain, they cannot exist. When a person dies, brain activity stops, consciousness loses, and the so-called soul disappears.
Buddhism, in fact, the real Buddhism does not accept the concept of soul, because it cannot be established in the theory of origin and extinction. From the standpoint of "impermanence of life and death", everything is impermanent, so is the material world and so is the spiritual world. When we look at things with the naked eye, we often have the illusion of "identical". If we observe anything with sophisticated instruments, everything will change in an instant. The "life and life" mentioned in the Book of Changes actually includes death and death, that is, birth and death changes.
Taoism holds that the human soul is a special form of consciousness, which is called "Shen Yuan" and "Inner Dan". Shen Yuan is divided into yin and yang. After practice, people can become pure yang, so that they can control the soul to go in and out of the body. This is the so-called "Shen Yuan OBE". If we want to define it accurately, we should divide the word ghost into ghost and soul. Ghosts, commonly known among the people, are actually not human souls, but three bodies. Soul refers to people's three souls and seven spirits.
Taoism believes that evil spirits made of animals often disguise themselves as ghosts to harm people. Patients possessed by evil spirits are often mistaken for immortals. Taoist classics clearly record that immortals will never possess human bodies. There is a clear record in the Jade Pavilion of the Temple of Heaven of the Emperor Tai Shang: "Everything is really immortal, and no one is attached to it. If it is attached to human language, it must be an evil spirit. " ).
Christian primitive Christianity divides the soul into two parts: spirit (Greek pneuma) and soul (Greek psyche): "soul" is a flesh-and-blood thing, which exists in all living things; "Spirit" (that is, vitality) comes from heaven and only human beings have it. Therefore, westerners have the saying that "man is the spirit of all things". The word "soul" in the original Bible (that is, Hebrew nephesh and Greek psyche) shows that there is no difference between body and "soul" and describes that "soul" will die.
Influenced by the neo-Platonism of ancient Greek philosophy, in today's universal Christian belief, man is divided into two parts-soul and body, which are inseparable from birth. According to the Bible, a dead believer's body will change, just like the glorified Jesus.
The most popular view in the Middle Ages was that the soul was created by God, and God created a soul for every new body. This idea was supported by the Reformed Tradition and Calvinism. Another view is that an individual's soul is inherited from his parents, which is accepted by some Christian godfathers and Catholic factions.