A small mountain spring ran tinkling down the narrow stone crevices. Many years passed. An egg-sized shallow hole was washed out on the rock. Strangely, the mountain spring anyhow brought some bright yellow gold sand and got to fill the small hole.
One day, an old woodcutter hit on this secret. To his amazement, he cupped the gold sand carefully.
Since then, the old man furtively fetched the gold sand once every half a month or so, so he became rich soon.
When discovering his father's secret, his son advised:If they widened the stone crevice for more mountian spring, more gold sand could be washed here. The old man thought it over and felt it advisable. So the father and son chiseled the narrow stone crevise so widely that the mountain spring was several times than ever. But unexpectedly, the gold sand didn't increase but disappeared ever since.
They felt puzzled: Where had the gold sand gone?
一股细细的山泉沿着窄窄的石缝叮叮咚咚往下流淌，也不知道过了多少年，竟然在岩石上冲刷出一个鸡蛋大小的浅坑。奇异的是，山泉不知从哪里冲来黄澄澄的金砂，渐渐的填满了小坑。
有一天，一位砍柴的老汉偶然发现了这个秘密，惊喜之下，他小心翼翼的捧走了金砂。
从此，老汉过个十天半月就偷偷来取一次金砂，日子很快富裕起来。
老汉的儿子发现了父亲的秘密，他建议：拓宽石缝，扩大山泉，不是能冲来更多的金砂吗？老汉想了想，觉得有理，父子俩把窄窄的石缝拓宽了，山泉比原来大了几倍，谁知金砂不但没有增多，反而从此消失的无影无踪。
父子俩百思不得其解：金砂到哪里去了呢？