Wow i know this,been wondering what it is..i had to sign up to reply.been looking for explanation to this like forever! So the weird thing or rather strange is that i knew about this feeling in a dream about 10 years ago (am 25) and i was evading a creature so my point of escape was through a wall a big wall so i wasnt left with any option all i had to do was crash into the wall and as i was doing that i naturally (in the dream state) felt the tingling feeling sort of came from inside my rib cage and felt abit weird but managed to somehow bypass the wall without crashing it into pieces...when i walk up i was like 'huh!' How was that possible...but dint mind much on that so after a couple days i had another dream and that time i think i was having a lucid dream because i could recall bypassing a wall from the other dream while in this dream (dont know how this is possible) then i tried to go through a wall and very VERY surprisingly i generated the feeling as i was walking through the wall and succeeded.i felt so amazed.but the shocking thing is that when i tried to walk through the wall again without making the feeling i could not pass it!!.so guys when i walk up i dint know how i did it but i was able to generate the feeling while awake i was so excited and thought i cud pass through the wall while i generated the feeling but to my disappointment i it failed.i actually thought i cud pass the wall because that feeling was so strange..(dummy me )...so from that day i was able to do it upto now and once tried to explain to someone and all cud get was a sloppy stare to my face.ooh and i was forgetting,upto to this day i am able to do it almost in any lucid dream that i get and i recall one time generating the feel with an intention to go invisible to people in the dream and it worked!.....and another thing i get this feeling when i get sleep paralysis,it feels negative than when i do it intentionally i dont know why.this feeling is realy hard to explain to someone but i just think the best way is to tell someone to fake being afraid assuming u have just seen something straight from your worst nightmare....i think its a natural way the brain react to things cause i learnt it in a DREAM and i never knew this before until i dreamt and naturally generated the feeling without thinking to pass that wall (magically)...its amazing how God made us isn't it?