Interesting topic....
WEll, It does happen...somep ples call it "Near to death experience" . Normally, when pples is going to die..they will have this experience..Those who survive will tell u tht they saw a tunnel and light at the ohter end... I read a book few years back regarding this topic and those interviewed managed to survive to tell their experience..
Another instant where this occur is when u r sleeping and sometime u feel your "spirit" is out of your body...But in Pychology point of view, it actually becoz u r under stress and your brain is "playing" trick on u tht this happen..It happaned to me alot last time but i managed to overcome it..
Well, there is anohter instant...When u doing mediation in the wild or open...this may happen..Beleive it or not...
Hmm..just 2 cents worth of ideas to share...
