Death

Death in biology is the end of the life of living organisms and in medicine it means the irreversible cessation of vital signs. And in texts from other disciplines, it may refer to the complete destruction of a process, a device, or a phenomenon. In general, the meaning and truth of death is the separation of the soul from the body and the separation of the two from each other, when there is a connection and interest between the soul and the body, a person is alive. But when this connection is cut and the soul is separated from the body, death is certain. Various factors and conditions can lead to the death of animals, including hunting, disease, habitat destruction, aging, malnutrition and accidents. In developed countries, the main cause of human death is old age and diseases related to old age, it is considered very important.
to use their meat for human food. Traditions and beliefs related to death are one of the most important parts of human culture. In addition, the views of religions on death are also considered very important. After stopping the vital signs of consciousness, all the senses are completely lost and the living being (humans and animals) does not feel, hear, see or sense anything because these things belong to his body and nerves and their analysis by the brain. which disappears and leaves for a long peace like (before birth). After death in the brain, about 1 minute after the oxygen supply to it is cut off, chemical reactions take place in the brain, which causes the destruction of brain cells (neurons).
Then the body becomes tonus and dry muscles and it becomes so-called (dry) and microorganisms such as anaerobic bacteria start to work from outside and inside the body and decompose the tissues of the body and after about twenty years of tissue The soft body is destroyed and only the skeleton (bones), teeth, hair and nails will decompose much slower than the soft tissue due to the keratin protein. Bouali Sina comments on the truth of death: Death is nothing but the human soul abandoning the tools it has used. (Instruments mean the same organs and parts that are collectively called the body, just as a craftsman leaves his tools. When the soul leaves the body, it will remain and there is no way to annihilate it.
He also says: The truth of death is the separation of the soul from the body. This contradiction does not mean the corruption and destruction of the soul. The only thing that results from this contradiction is the corruption of the composition of the body and its disintegration. But the soul, which is the essence of a person, remains the same. According to Islamic philosophers, death is when the human soul leaves the body and is disconnected from the body. Of course, this point of view is derived from the Qur'an and hadiths, which do not consider the nature of death to be annihilation or nothingness. In Islamic texts, there are various interpretations about death, which all share one direction, which is that death is not annihilation, but a transition from one house to another. Because man is composed of soul and body, and with death, which is the loss of life and the life of the outward body, the soul is transferred to the world of the hereafter.
And in this sense, death is attributed to humans. Death is the tradition of everyone and according to the believers, God has not set the survival and immortality of worldly life for anyone. In this world, everything other than God is mortal and only the essence of the Lord of the worlds will remain.