Very interesting video. It is the quietest place on earth. It is only 2:22 minutes long, but there is a lot of information here that has my mind racing now. ha
I equate some of the things in this video that people were "feeling" and such with Near Death Experience type things.
After viewing this, I wish they would have done more of a study on it. If this guy sat in this room for one hour with no sound at all, I noticed that it is also without another sense; touch.
If you have a deaf person, even though they do not hear, they feel the vibrations throughout every day life.
Anyway, this got me thinking. Interesting.