What do the Near-Death Expieriences show about Universalism or Eternal Torment,
do Non-Christians go to Hell, I believe that the NDE's expieriences are REAL,
and Not simply Hallucinations or Brain Chemicals Malfunctioning 
And my personal opinion is that you would in large part be wrong. When Hindus have near death experiences, their experiences follow a path of their religious beliefs, same with Muslims, etc. It seems that in the waning moments of life your moral conscience surfaces in accordance to the dictates of your religious beliefs, and this is what is being experienced.
I know that King David talks about walking in the pathway of the "valley of the shadow of death" and that the "Lord would be with him". This is often the near death descriptions many Judeo/ Christian believers seem to have, but it seems not all, or maybe even most.
Not very many people have ever come back from the dead to talk about it such that they were bonafied dead like Lazarus was to the point he "stinketh". But Lazarus left us no record of his death experience, except that we know he had to go through it twice....for me once will be enough......after that I want the new body I was promised, not the same stinky one back again.