Here are a few options for a WordPress post tag description for the tag “黑暗” (Hēi’àn) in Traditional Chinese, along with explanations to help you choose the best fit:

**Option 1 (Focus on literal meaning and broad application):**

* **Description:** 黑暗是萬物不見光明的狀態，也象徵著隱藏、未知與虛空的意象。涵蓋了夜幕、陰影、沉淪等意境，用於探索生活、心理、文學等各種層面。

* **Translation:** Darkness is the state where things are not illuminated by light. It also symbolizes concealment, the unknown, and emptiness. Encompasses the mood of nightfall, shadows, and sinking. Used to explore various aspects of life, psychology, literature, etc.
* **Why this is good:** This is very comprehensive, covering the literal meaning and some common metaphorical uses of darkness. It’s suitable for any post touching on the topic and provides a good overview.

**Option 2 (Focus on a slightly more evocative and metaphorical sense):**

* **Description:** 黑暗，是光芒無法觸及的幽深，亦是內心深處的掙扎與迷惘。感受其奧秘，探索幽暗之處。

* **Translation:** Darkness is the profundity that light cannot reach, and also the struggle and confusion within one’s heart. Experience its mystery, explore the shadowy places.
* **Why this is good:** It uses more evocative language. Suitable for a post that aims to discuss topics dealing with mystery, introspection or psychological analysis.

**Option 3 (Focus on the feeling darkness evokes):**

* **Description:** 黑暗帶來靜謐、壓抑，但也蘊藏著轉機與希望——在闇影中，能找到力量，也能重新獲得光明。

* **Translation:** Darkness brings tranquility, oppression, but it also harbors opportunities and hope–in the shadows, can find strength, and can regain the light.
* **Why this is good:** This draws attention for a more optimistic outlook on the dark side of life. Suitable if the website explores the topic not just by expressing darkness but also emphasizing hope or new beginnings.

**Option 4 (Short and Sweet):**

* **Description:** 探索黑暗的世界，涵蓋夜幕、陰影、隱藏。

* **Translation:** Explore the world of darkness, including night, shadows, and concealment.
* **Why this is good:** This version is very concise and easy to understand. It doesn’t offer much depth, so is useful if it’s a frequently used tag or when there are limited space.

**How to choose:**

* **Consider the scope of your website:** What kinds of posts will use this tag most often?
* **Consider your tone and style:** Do you prefer formal or poetic language?
* **Think about your audience:** What level of detail will they appreciate?

**To use it:**

1. Go to your WordPress admin panel.
2. Go to **Posts > Tags**.
3. Find the tag “黑暗” (or create it).
4. In the “Description” field, paste the description you’ve chosen.
5. Click “Update” to save your changes.

Remember to use the description that best reflects your website’s content and goals. Good luck!