除了鼓励牧羊少年要履行自己的天命外,老者又给男孩讲述了什么故事呢?他为什么要这么做?老者帮助牧羊少年的条件变了吗?The old man related that, the week before,he had been forced to appear before a miner,and had taken the form of a stone. The miner had abandoned everything to go mining for emeralds (绿宝石). For five years he had been working by a certain river, and had examined hundreds of thousands of stones looking for an emerald.