Death is a two-stage process

“When you think you’ve died, you haven’t actually died. Death is a two-stage process, and where you wake up after your last breath is something of a Purgatory: you don’t feel dead, you don’t look dead, and in fact you are not dead. Yet.
Perhaps you thought the afterlife would be something like a soft white light, or a glistening ocean, or floating in music. But the afterlife more closely resembles the feeling of standing up too quickly: for a confused moment, you forget who you are, where you are, all the personal details of your life. And it only gets stranger from here.”

Excerpt From: David Eagleman. “Sum.”