Lively Corpses

When someone dies, what happens to them? They get put into a morgue, buried, cremated, used for 'scientific research', have their internal organs donated or in some cases: put in a body bag and disposed in a dustbin.

And it's all fine, they are dead. They can't feel anything. They are at rest.

But what proof do we have of this? Who has lived death, came back and been able to confirm this statement?

What if they can still feel pain after death. What if they are fully aware of their senses. What if they feel everything that is happening to their deceased body.

For God sake, please don't be cremated.