Hi Suburban. My dad was in intensive care a few years ago after a heart attack & emergency bypass. After a few days of getting better, there was a very scary episode where his heartrate suddenly skyrocketed and he went into cardiac arrest. They got his rhythm back with the defibrillator and he recovered, though he died a while later from related problems :(
But months after the cardiac arrest, he told me that he had never felt better or more at peace than he did when that happened. He was actually angry and a bit depressed at the fact that they'd brought him around and 'ruined' the experience. He said that everything had been bathed in an orange light, and it felt soft, and safe, and he wanted it to go on forever. It's amazing because it all looked awful from where I was (standing at the bedside, scared to death), but it didn't feel awful to him.
I'm know I'm just some internet stranger and as far as you know my dad and I are both crackpots, but I promise you he was the most logical, smart, grounded guy going. And even after the experience, he was somewhat noncommittal about whether it was a spiritual experience or just the experience of the brain starting to shut down, but still he said that all fear of death had gone from him. He said, "I still don't know what's on the other side of death, but now I know that the process is beautiful."
I'm so grateful that he shared that with me. It was an immense comfort when he died, and eases my own anxieties around death.