I will share you a scientific research where people speak what they see after they back from the death:
Rofl... dude whatever you see is just what you think and are familiar with and no there is no scientific research on people ever who came back to life after death,Wikipedia is crap.
There is quite a bit of scientific research to support veridical perception and consciousness after death, including the recent AWARE study where the patient's recollections were verified even though the patient was totally brain-dead (i.e. actually dead); here are some resources you can explore:
http://www.near-death.com/evidence.htmlhttp://www.aeces.info/Top40/top40-main.shtmllol what people claim to be 'near death experience' are just hallucinations. Want to recreate it? It can be easily and safely done. What you see and dream about with your eyes closed is just your brain going woozy as it slowly dies nothing more and nothing less.