Here’s a description for the WordPress post tag “修行” in Traditional Chinese, designed to be concise and relevant:

**Option 1 (General & Direct):**

> **修行 (Xiūxín)**： 涵蓋靈性、身心鍛鍊與自我完善的過程。

**(Translation: 修行 (Xiūxín): Encompassing spiritual, physical, and mental training, and the process of self-improvement.)**

**Option 2 (Emphasizing Practical Application):**

> **修行 (Xiūxín)**： 關於自我提升、內在探索和生活實踐的文章。

**(Translation: 修行 (Xiūxín): Articles about self-improvement, inner exploration, and the practical application of life.)**

**Option 3 (Focusing on Philosophical Aspects):**

> **修行 (Xiūxín)**： 探討身心靈修煉，以及與天地萬物和諧共處的哲學思想。

**(Translation: 修行 (Xiūxín): Exploring physical, mental, and spiritual cultivation, and philosophical ideas about harmonious coexistence with the universe and all things.)**

**Why these work:**

* **Clear and Concise:** Each option gets straight to the point, defining what “修习” (Xiūxín) encompasses within the context of a blog or WordPress website.
* **Relevant Keywords:** The descriptions use keywords like “靈性” (spiritual), “身心鍛鍊” (physical and mental training), “自我完善” (self-improvement), “內在探索”(inner exploration), and “哲學思想” (philosophical ideas), which are likely to be relevant to the content categorized under this tag.
* **Target Audience:** The language is appropriately formal or informal depending on which focus you choose, but it is suitable for most Chinese-speaking audiences.
* **Flexibility:** Choose the option that best reflects the overall tone and focus of your blog or website.

**How to Use in WordPress:**

When you’re setting up the tag in WordPress, you’ll enter this description in the “Description” field for the tag. WordPress will use this description when displaying the tag archive page (e.g., when someone clicks on the “修行” tag), giving your readers context about the posts within that category.