---
title: 澤火革 — Revolution (Hexagram 49)
lang: en
canonical: https://ekidan.ai/library/49
alternates:
  - ja: https://ekidan.ai/ja/library/49
  - zh-Hant: https://ekidan.ai/zh/library/49
  - zh-TW: https://ekidan.ai/zh/library/49
  - zh-HK: https://ekidan.ai/zh/library/49
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.
---

# 澤火革 · Revolution — Hexagram 49

Hexagram 49 of the I Ching is 澤火革 (Revolution). Revolution — change. Only on its day will it be believed. Supreme success, perseverance — remorse vanishes. Change with the time. Reform succeeds when time and trust align.

## Work / Relationships / Health

- **Work**: Good for reform, career change, renaming.
- **Relationships**: Renew the relationship; decision time.
- **Health**: Liver, blood, skin shifts.

## Structure

- Number: 49
- Name: 澤火革
- English: Revolution
- Romaji: taku-ka-kaku
- Pinyin: gé
- Upper: 澤 (Lake)
- Lower: 火 (Fire)
- Lines (top to bottom):

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

## Questions about this hexagram

### What does hexagram 49 (澤火革) mean?

Revolution — change. Only on its day will it be believed. Supreme success, perseverance — remorse vanishes. Change with the time.

### What does 澤火革 counsel?

Reform succeeds when time and trust align.

### What does 澤火革 say about work?

Good for reform, career change, renaming.

### What does 澤火革 say about relationships?

Renew the relationship; decision time.

### What does 澤火革 say about health?

Liver, blood, skin shifts.

### Which trigrams make up hexagram 49?

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


Source: [Takashima Ekidan AI — ekidan.ai](https://ekidan.ai/library/49)