No matter how many detours and adjustments it made, the caravan moved toward the same compass point. Once obstacles were overcome, it returned to its course, sighting on a star that indicated the location of the oasis.
Paulo CoelhoTake these," said the old man, holding out a white stone and a black stone that had been embedded at the center of the breastplate. "They are called Urim and Thummim. The black signifies 'yes,' and the white 'no.' When you are unable to read the omens, they will help you to do so. Always ask an objective question.
Paulo Coelho