"Behold, I announce to you a mystery: we shall not all die, but we shall all be changed. In one moment, in the twinkling of an eye, at the sound of the last trumpet - for the trumpet will sound - the dead will rise intact, and we will be changed. It is necessary that what is destructible should be clothed with indestructibility, and what is mortal should be clothed with immortality." 1 Corinthians 15: 51-53
This lie was told by one of the greatest Christian prophets, the Apostle Paul of Tarsus. "We shall not all die..." said the prophet some 2,000 years ago.
This passing proper of Christians was initiated by their founder, Jesus called by them the Christ:
"For the Son of Man shall come in the glory of his Father with his angels, and then he shall render to every one according to his conduct. Verily I say unto you, Some of them that stand here shall not taste death, until they see the Son of man coming in his kingdom." Mt 16: 27.28
In case anyone dares to question the truths of the faith, the prophet Paul delivered another prophecy:
"...who go to perdition because they have not accepted the love of the truth (We shall not all die...) in order to obtain salvation.  Therefore God permits deception to work on them, so that they will believe a lie, so that all who have not believed the truth (We shall not all die...) but have taken a liking to iniquity will be judged." 2 Th 2: 10-12
That is, blind faith is truth and the ability to reason logically is a lie and deception allowed by god.
However, some people base their belief in life after death not only on religious scriptures, but also on a phenomenon called near-death experience (NDE).
Quoting from wikipedia: 'Neuroscientific research hypothesises that the NDE is a subjective phenomenon resulting from "disturbed bodily multisensory integration" that occurs during life-threatening events. Some transcendental and religious beliefs about the afterlife contain descriptions similar to NDEs. They describe sensations such as out-of-body experiences, a 'panoramic view of life', a light, a tunnel or a boundary.
Recently, quite by accident, scientists have made a fascinating study related to human death. In a study published last week in Frontiers in Aging Neuroscience (https://www.frontiersin.org/articles/10.3389/fnagi.2022.813531/full)
doctors took brain scans of a patient who had died during a test that detects electrical activity in the brain, called an electroencephalogram (EEG).
As the patient died during the test, the doctors gained an insight into the man's brain activity while dying. Such scans had never before been captured on a dying person.
For about 30 seconds before and after the man's heart stopped beating, the scans showed increased activity in parts of the brain associated with memory recall, meditation and sleep.
"By generating oscillations involved in memory retrieval, the brain may play a last recall of important life events just before we die, similar to those reported in near-death experiences," said Ajmal Zemmar, a neurosurgeon at the University of Louisville in Kentucky.
In 2013, a similar study was conducted on rats. They too showed very similar brain activity just before and just after death in these animals.
Anyone who, like myself recently, has lost someone close to them knows the powerful emotions that accompany this. The sadness is overwhelming, the desire for one more conversation, one more look, the disbelief that the parting is final, that there is nothing there.... Religions prey precisely on these emotions, on this sadness and sense of loss, coming out with their offer of an imaginary life after life. It has been a lie from the beginning.
However, I hope that the last visions of my loved one gave her eternal peace, and that the memories were only among the good ones. Because I know that life in flesh and blood was difficult.
For some reason the followers of an imaginary god threaten me with annihilation in the fire, attribute iniquity, say my father is Satan because I sincerely hate their lie, but as I wrote in The Satanic Kerygma: "countless graves completely contradict the lie of eternal life".