^White noise is comforting.

  Our body space extends as far as we can see and as far as we can
  hear. It doesn't end at our fingertips.

  We even have a bubble around us - our "personal zone' - perhaps
  our unconscious measurement of the Infrared (heat) colors around
  us (I suspect).

  Anything that disturbs our body space gives us the creeps and we
  respond with the results of our emotional calculator and brain
  chemicals that tell us : RESPOND OR FREEZE - NOW! literally
  flood the murky soup of our brain.

  White noise is comforting.

  It is randomness with patterns; the sound of a fan running, the
  non-stop talking of TV and Youtubers, socializing with noisy
  friends.

  The walls of our indoors is comforting too, to a point, giving
  us a physical end to our personal space; a sense of safety and
  comfort between these walls.

  Randomness is comforting. It blurs anything outside of it,
  placing it out of our area of concern.

  Just tonight, i took a quick walk at dusk down the driveway and
  out to the street.

  I was contemplating body space, wondering if I could sense how
  far it extends away from me. I looked up at the moon, to the
  forest at the sides. I was lost in my own thoughts.

  Suddenly, I hear a rustling in the palm fronds near by. I felt a
  creeping sensation go up my legs and to my back. I looked over
  in that direction to see a few palm fronds still jiggling. By
  then, the rest of my body had turned around and started talking
  at the same pace, back towards the driveway.

  The feeling left as quickly as it came, but my awareness was
  heightened slightly.

  As I pondered over the noise, starting up the driveway, I heard
  another rustle, closer. The same creepy sensation went up my
  legs to my lower back and when I couldn't see what made the
  noise in the oncoming darkness, I continued walking up the
  driveway, pausing to reflect within running distance of the
  front door, in the perceived safety of my home.

  There was no fear - but I did get the answer to my question
  about body space.

  And in those moments, I understood why a bump in the night is so
  frightening to children and grownups alike and why we live in
  cultures full of industrial noises and talking and music and
  walls all around:

  It is patterned randomness. It is white noise for the brain.

  White noise is comforting.^