Here's why:
* Death is a permanent cessation of all biological functions. This includes brain activity, breathing, and heartbeat. Once these functions stop, they cannot be restarted.
* There is no known scientific or biological mechanism that allows for a dead organism to be revived. Even in cases of near-death experiences or resuscitation, the organism was never truly dead.
* Stories and myths about resurrection exist in various cultures, but these are not based on scientific evidence.
While the idea of coming back to life after death is intriguing, it is purely within the realm of fantasy and fiction.