Have you ever dreamed that you were falling out of bed or from some great height, and you awoke in fright? I remember that as a boy I would often be awakened by such a terrifying feeling.

I heard about a man who had this sensation as soon as he slipped into sleep. He was so rudely awakened by his sense of falling that he was afraid to go back to sleep. He feared he would die, and he imagined he was falling into a bottomless pit.