Originally posted by FireIce:
google "sleep paralysis"
and READ
read liao lar ..
"Physiologically, it is closely related to the paralysis that occurs as a natural part of REM (rapid eye movement) sleep, which is known as REM atonia. Sleep paralysis occurs when the brain awakes from a REM state, but the bodily paralysis persists. This leaves the person fully aware, but unable to move. In addition, the state may be accompanied by hypnagogic hallucinations."
dun really get it except for the fully aware, unable to move part ..