# Dui 兌: Lake

Canonical page: https://thefreeiching.com/trigrams/dui
Last updated: 2026-10-07

- **Symbol:** ☱ 兌
- **Natural image:** Lake
- **Quality:** the joyous, open
- **Family role:** Youngest daughter
- **Lines, bottom to top:** 110 (1 = solid yang, 0 = broken yin)

A trigram is a stack of three lines. Each hexagram is two trigrams: one below (the lower, inner or earlier situation) and one above (the upper, outer or later situation). Dui appears in sixteen of the sixty-four hexagrams, eight times as the upper trigram and eight as the lower.

## Dui as the upper trigram

- [17 Following](https://thefreeiching.com/library/17)
- [28 Great Preponderance](https://thefreeiching.com/library/28)
- [31 Influence](https://thefreeiching.com/library/31)
- [43 Breakthrough](https://thefreeiching.com/library/43)
- [45 Gathering Together](https://thefreeiching.com/library/45)
- [47 Oppression](https://thefreeiching.com/library/47)
- [49 Revolution](https://thefreeiching.com/library/49)
- [58 The Joyous](https://thefreeiching.com/library/58)

## Dui as the lower trigram

- [10 Treading](https://thefreeiching.com/library/10)
- [19 Approach](https://thefreeiching.com/library/19)
- [38 Opposition](https://thefreeiching.com/library/38)
- [41 Decrease](https://thefreeiching.com/library/41)
- [54 The Marrying Maiden](https://thefreeiching.com/library/54)
- [58 The Joyous](https://thefreeiching.com/library/58)
- [60 Limitation](https://thefreeiching.com/library/60)
- [61 Inner Truth](https://thefreeiching.com/library/61)

See also the [eight trigrams](https://thefreeiching.com/trigrams).

## Cite this page

The Free I Ching. "Dui 兌: Lake." https://thefreeiching.com/trigrams/dui (updated 2026-10-07).

*The I Ching is a tool for reflection, not a prediction. Nothing here forecasts events or replaces professional advice. Short quotations with a link back are welcome. Please do not republish a page in full. The open data files at [/data](https://thefreeiching.com/data) are licensed CC BY 4.0.*

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Source: The Free I Ching (https://thefreeiching.com/trigrams/dui). The I Ching is a tool for reflection, not a prediction. Nothing here forecasts events or replaces professional advice.