In Wizard and Glass, Steven tells Roland about the glass balls which form the Wizard's Rainbow.
My question is....knowing that the colors of the Rainbow never see the good, only the negative in situations, would you peer into one if you had the chance? Would the powerful urge to know the future, or to see another section of time overcome your better judgement, much as it did Roland's?Some colors of the Wizard's Rainbow are reputed to look into the
future. Others look into the other worlds—those where the demons live, those
where the Old People are supposed to have gone when they left our world.
These may also show the location of the secret doors which pass between the worlds. Other colors, they say, can look far in our own world, and see thingspeople woulas soon keep secret. They never see the good; only the ill.