Tuesday, October 23, 2007

Clues to Why We Dream at All


Few of us suffer from nightmares crippling and persistent enough to demand treatment. Yet we all know how bad a nightmare feels, how it surrounds you and surges up to drown you and makes your teeth fall out in chunks and gives you leukemia and look, your 6-year-old daughter is running back and forth through traffic, and oh no, this train is headed the wrong way and it’s past midnight, and there you are a cowardly third-grader back on Creston Avenue in the Bronx, no, please, not the Bronx! And you scream and you thrash and you want to wake up.

By all evidence, outrageously bad dreams are a universal human experience. Sometimes the dreams are scary enough to jolt the slumberer awake, in which case they meet the formal definition of nightmares — bad dreams that wake you up. At other times, they are even worse. The sleeper thinks the nightmare is over, only to step into Your Nested Nightmare, Chapter II. Whatever the particulars of the plot, researchers say, nightmares and dreadful dreams offer potentially telling clues into the larger mystery of why we dream in the first place, how our dreaming and waking lives may intersect and cross-infect each other, and, most baffling of all, how we manage to construct a virtual reality in our skull, a seemingly life-size, multidimensional, sensorily rich nocturnal roundhouse staffed with characters so persuasive you want to ... strangle them, before they can strangle you.

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