i just read a book about the human mind's ability to picture something and be afraid of it. for instance, if you are coming home from a long day of hunting wooley mammoths, and you see your partner sprinting the other direction yelling something about "saber tooth coming!", you turn and run just as fast because your imagined saber tooth is as scary as the one your partner saw.
it is our gift (and curse) as humans to fear our own imaginations. and even though we think highly of our ability to picture "what if" scenarios and plan ahead, truth is, things hardly ever turn out the way we imagine them.
so, for most of us, the fears we have exist only in our imagination. there is no saber tooth, there is no imminent threat to our health...just a picture in our head. a vague picture at that.
this is one of my favorite quotes:
"Afterwards I learned, that the best way to manage some kinds of painful thoughts, is to dare them to do their worst; to let them gnaw at your heart till they are tired; and you find you still have a residue of life they can not kill."
we all have our own worst fears...and, by their very nature, they are unspeakable. they are THE WORST. yet, at the end of the day, they are imagined. we are afraid of inventions of our own minds.