The white stone was ordinary, almost oval, and beautiful to look at. The pilgrim allowed the other travellers to take turns holding it, but nobody could see what was so special. They returned the stone to him, and went their way. The pilgrim walked the great road past monuments, famous views, venerated boulders or trees, and ancient bridges without seeming to notice anything. Several carriages almost ran over him and a donkey had to gently nudge him out of the way at one point, since he was so lost in the radiance of the stone. A sentry at a gatehouse watched him, and decided to ask what the stone was all about. The pilgrim took him down to the river. This stone is like a library or a gallery, said the pilgrim. When I wash the stone, I see a line of boats along the shallows where I grew up. Or a little army of frogs racing over black rain drops on white water! The sentry smiled at the thought. The pilgrim led him by the arm back up to the roadway, and held the stone out in the sun, drying it in his palm. Now, I see the great plain where they hunt stones; it is covered in snow! The distant mountains are a pale but bold shade of blue. The cranes have already departed. The houses scattered across the fields look like hayricks. Sometimes at night, when it is quite warm, I see the steam rising from a volcanic lake or the nape or throat of a beautiful girl. The sentry laughed, not sure if the pilgrim were the wisest or maddest person he had ever met. Where can one find such enchanted stones? the sentry asked. I found mine when I was a child. I found it at the back of an old stone warehouse where my grandfather stored his rusting farm implements. There were all kinds of tools! Rakes, scythes, shears, plows, hoes, saws, and other things I can no longer name! Do not worry, you will find your stone! The sentry thanked the pilgrim, and invited him to tea in the gatehouse before sending him along. On the roadway at twilight, he found a black stone, dusted but ink-dark once he polished it. The nights of long ago wafted out of the hard mineral surface, and he could see the rooftops, a rusted sea of tiles, and the moon and stars far above.