For me "Going 3 feet back of my head" describes what I
experienced. This started happening age 6 and it scared me.
No one could understand what I was talking about.
When I first did this at will apart from moving apparent location it also went along with being more at cause over
my environment. My mum was scolding and nagging me about
something, as mums do, and I felt this would be more comfortable if in an exterior state and so it was. I then
went in and out a few times to try out this new ability.
I think that doing this is something anyone could learn
to do eventually and it may require some processing as well
as practice. I have met several people who could do
this. Also met someone who could do what I believe is usually called astral walking, moving to another location and percieving things. For me she is a credible witness.
Many have experienced special abilities. See this forum
for example and probably none of the people writing are
scientologists.
http://www.spiritualforums.com/vb/archive/index.php?t-60397.html