First you said, "I don't believe him. " Then you said, "I believe he thinks that he did. " So do you believe he's telling you the truth about what he saw or don't you? Which is it?
I take him at his word that he thinks he saw god. I don't believe he did see god. I think he's telling the truth about his subjective and illusory experience. I don't think his statement reflects a truth about the nature of god.
If you can come back, you weren't dead however with that kind of shock to the system (and possible fear) you might "experience" anything that is stored in your brain. You might see Darth Vader or the "angle of death". If you don't believe in those things or if you aren't from a culture where you've every been exposed to those things you won't have those experiences. You might experience the great monkey man in the sky or whatever your culture believes in and that you have been told about. When people have out of body experiences it's not real. There was a case of someone experiencing being on the ceiling of his bedroom looking down on his bed and bedroom. It seemed real to him. He could describe the bed sheets and objects in the bedroom until someone pointed out to him that even though he owned sheets such as he had described they weren't on the bed that day. It's just whatever is in your mind.
You should write a book about your hypothesis. It sounds interesting. I'm sure everyone will be dancing in the streets when they read it.
A recent controlled experiment measured brain activity in subjects given psilocybin (a hallucinogen). The results were not at all expected. There was a marked lowering of blood flow and activity in the brains of the subjects while they were under the influence of the drug. While it was not part of the experiment to speculate on Near Death Experiences, it does raise the question of whether near death conditions, including lowered blood and oxygen could induce hallucinations. Perhaps Mazulu has some impairment of oxygen supply to his brain and this induces visions of death angels and other spirits and space aliens. It would be interesting to have his head examined and see the results. Many people that take "heroic" doses of hallucinogens report that the experience was like they had died. http://www.the-scientist.com/?articles.view/articleNo/31496/title/Scanning-the-Psychedelic-Brain/
There is an old saying in the internet era. DON'T FEED THE TROLL. Plainly the above is trolling, and could well be designed to associate Christians with such levels of stupidity.
It really depends upon your point of view, upon your world view. Your world view is one dimensional. It is a scale of how intelligent or stupid something or someone is. That is your entire world view, your experience of the world. If I say something that you don't like, you call me stupid. Honestly, it's really not worth my time to critisize your one dimensional world view.
I guess I should explain the joke since it is over your head. Setup: Punchline: iro·ny noun \ˈī-rə-nē also ˈī(-ə)r-nē\ : the use of words that mean the opposite of what you really think especially in order to be funny : a situation that is strange or funny because things happen in a way that seems to be the opposite of what you expected