易医玄经（一）异人授易

昔日紫极游历南岳，观察虫文鸟迹，足踏禹城三日。心中萌生疑惑，便取钱币掷向空中。掷出后，通宝金币落入谷地，被祝融帝收集，无意间得到了一个难以解释的谜题。呆若木鸡，不知所措。

正当此时，一行人站在禹王的遗迹前，对着紫极凝视良久，然后开口问道：“你也通晓易经吗？”紫极回答说：“我只略懂其一二。”那个人又问：“能否和我详细讨论一下？”紫极回应说：“我的理解还不足以与人分享吉凶之事。”

接着，那个人再次询问：“为什么你会这样呆立不动？”紫极解释说：“有一定的象形符号必然有它对应的事物，我不知道将要发生什么，你为何这样提问？难道你也是易经的师傅吗？”

那个人点头同意，并表示愿意传授他易经知识，说：“既然如此，当下就开始传授你的易经，让我们见个高低吧！”于是，他便开始教授紫极关于三元八宫的秘密。

“三元”指的是天、地、人的三个方面，其中干代表度量天宇，支代表度量大地，而音则代表度量人的声音。人类在天地之间，所以必须参考天地的数理。而现今流行的人们只使用支法而忽略了干和音，这样所知道的就很有限了。他进一步说明了如何通过甲、子、律这三个不同的纳法来衡量事物，并告诉紫極只有掌握纳子的方法才能得到验证，但如果掌握纳甲和纳律的话，那么效果就会更好。

Purple Extreme asked for further clarification and was told that the method of using "Sub" (子) to flow into each other was the most auspicious, while the method of using "Ling" (灵) to fly and move around was the most abundant. He also learned that there were few people who truly understood the medical applications of I Ching.

The Master then revealed to Purple Extreme that he would teach him about the Eight Palaces, which are Inner Palace, Outer Palace, Main Palace, Transformative Palace, Flying Palace, Hidden Palace. Purple Extreme asked why he only mentioned six palaces and not eight. The Master replied that there were indeed eight palaces within those six - Yin Yang principles.

Finally, Purple Extreme asked about how to use these principles in practical life and was given a detailed explanation by his Master on how each palace represented different aspects such as False or Real (外宫/内宫), Body or Essence (本宫), Use or Action (飞宫), Concealment or Storage (伏宫), Progression or Advancement (变宫).