---
title: 兌為澤 — The Joyous Lake (Hexagram 58)
lang: en
canonical: https://ekidan.ai/library/58
alternates:
  - ja: https://ekidan.ai/ja/library/58
  - zh-Hant: https://ekidan.ai/zh/library/58
  - zh-TW: https://ekidan.ai/zh/library/58
  - zh-HK: https://ekidan.ai/zh/library/58
source: 高島易断 (Takashima Ekidan), public-domain 1893 English and 1901 Chinese editions
provider: ekidan.ai — AI-assisted I Ching reading grounded in 88 source-verified historical Takashima cases
license: Classical source text is public domain. This structured edition and its modern commentary are © ICHING LLC, ekidan.ai. Attribution requested when quoted.
---

# 兌為澤 · The Joyous Lake — Hexagram 58

Hexagram 58 of the I Ching is 兌為澤 (The Joyous Lake). The Joyous Lake — joy. Success with perseverance. Excess delight loses sincerity. In joy, keep sincerity.

## Work / Relationships / Health

- **Work**: Good for service, teaching, hospitality; guard speech.
- **Relationships**: Joyful, but avoid frivolity.
- **Health**: Mouth, throat, lungs.

## Structure

- Number: 58
- Name: 兌為澤
- English: The Joyous Lake
- Romaji: da-i-taku
- Pinyin: duì
- Upper: 澤 (Lake)
- Lower: 澤 (Lake)
- Lines (top to bottom):

```text
▬▬▬   ▬▬▬
▬▬▬▬▬▬▬
▬▬▬▬▬▬▬
▬▬▬   ▬▬▬
▬▬▬▬▬▬▬
▬▬▬▬▬▬▬
```

## Questions about this hexagram

### What does hexagram 58 (兌為澤) mean?

The Joyous Lake — joy. Success with perseverance. Excess delight loses sincerity.

### What does 兌為澤 counsel?

In joy, keep sincerity.

### What does 兌為澤 say about work?

Good for service, teaching, hospitality; guard speech.

### What does 兌為澤 say about relationships?

Joyful, but avoid frivolity.

### What does 兌為澤 say about health?

Mouth, throat, lungs.

### Which trigrams make up hexagram 58?

Upper trigram 澤 (Lake) over lower trigram 澤 (Lake).


Source: [Takashima Ekidan AI — ekidan.ai](https://ekidan.ai/library/58)