易医玄经（一）异人授易

昔日紫极游历南岳，观赏虫文鸟迹，足迹踏遍禹城三日。心中萌生疑惑，便取钱财而掷之。掷出时，一枚通宝入谷，被祝融帝收藏，无奈之际，紫极脸上露出懊恼的神情，如同木鸡般呆立。

正当此刻，禹王前行的人群中，有一人站定目视紫极良久后问道：“君亦通晓易学之术吗？”紫极答以：“略知其一二。”那人继续问：“能否与吾详细阐述？”紫极回答：“我所掌握的是浅显知识，不足以言及吉凶之事。”

这位高人又问：“何故你刚才如此呆立不动？”紫極解释说：“有象必有一事，我不知将会是何种事，你为何向我询问？难道也想成为我的弟子吗？”那高人点头表示愿意传授，并告知他三易八宫的奥秘。

紫極听后如梦初醒，对这位高人的深厚造诣感到敬畏，便拜师求教。那高人开导说：三易分为天、地、人，以度天、度地、度人的方式。然而现今世上的易学，只用支法而废弃了干和音的运用，因此所知甚少。

接着，那高人进一步解释了纳甲纳子纳音的不同，这也是古代已有的知识，但他认为目前流行的只使用纳子的方法，因为这个方法确实有效。但是，如果仅仅停留在这一层面，就无法完全理解其中奥妙。这位智者告诉紫極，现在很多人的玩弄于股掌之间的小小技巧，并不能真正帮助人们避免灾祸或趋吉利。

最后，那位智者提出要修炼医学，因为这是对未来最大的福泽，可以帮助百姓，而不是空谈容易理解却无益于实际生活的问题。他还提到，要学习八宫，即内宫外宫本宫变宫飞宫伏宫，以及旁通宫，每个都代表着不同的概念和作用。

Purple Extreme was wandering in the southern mountains, observing insect tracks and bird footprints. After three days of traveling through the ruins of Yu, he felt puzzled and decided to throw away some money. He threw again, and a copper coin fell into a valley, which was collected by Emperor Zhusheng. Purple Extreme felt regretful.

A person standing behind Yu Wang asked him: "Are you also familiar with the Yi?" Purple Extreme replied: "I roughly know one or two things." The person asked him: "Can you explain it to me in detail?" Purple Extreme said: "My knowledge is superficial and not enough to discuss good or bad fortunes."

The man then asked: "Why did you look so confused just now?" Purple Extreme explained that there must be something related to what had happened, but he didn't know what it would be. The man asked if he wanted to become his disciple, and Purple Extreme agreed.

The wise man taught him about the three easies (Yi) and eight palaces (Gong). He explained that currently only one method was used while ignoring two others. Therefore, people knew very little about it.

He further elaborated on how each palace worked differently from one another:

Outer palace is fake,

Inner palace is real,

Base palace is body,

Flying palace is use,

Hidden palace is hiding,

Changing palace is progress,

And finally mentioned the terminal place called the side-branching palace.

Purple Extreme bowed down in gratitude for his teacher's teachings before asking for his name.