I think near death experiences are near death hallucinations. These can be caused by lack of oxygen.

Since you're here conversing about it, you clearly didn't die, you NEARLY died. That is why it's called a NEAR death experience.

NDEs are evidence of what the mind experiences when it's in an edge-case stressful scenario. It is not evidence of ANYTHING else.

It is SUGGESTIVE of some other things ... and like all scenarios where we are invited to engage in confirmation bias about things, we should not conclude more than is warranted by the actual facts in evidence.

The avatars people see during NDEs are different, depending on their backgrounds, beliefs, or even their past lives. Not everyone sees "Jesus" - others see ancient Egyptian goddesses, etc.

Besides, Einstein taught us that all matter is a form of energy, so since energy can neither be created nor destroyed, we have always existed and will always exist in some energy form.

No reason to think energy souls or entities don't exist, and quantum physics already tells us different dimensions exist.

"For physicists, the distinction between past, present and future is only a stubbornly persistent illusion." -Einstein

I've had an out of body experience, several, in fact. However, after a small amount of research, it turns out to be completely natural. I even learned how to induce them intentionally, though it's not easy, but using sensory deprivation.

I'm more interested in having near life experiences lately. They seem far rarer and more miraculous.