This is Gua 58 ䷹ in the Yi Jing, titled “Exchange.” It is composed of ☱ Duì Lake above ☱ Duì Lake.
This is the ☱ Duì trigram in the Yi Jing, associated here with Lake.
兌
duì
Exchange; responsive joy; the trigram ☱.
Meaning
1. Transactional: To barter, exchange, or swap; the act of settling an account or fulfilling a debt.
2. Communicative & Affective: The opening of the mouth for speech, persuasion, and communication; joy, pleasure, or delight characterized as a responsive state derived from mutual resonance or satisfaction.
3. Symbolic: The trigram ☱ (the Lake or Marsh); associated with the youngest daughter, the mouth/tongue, and figures of mediation such as the shaman.
Grammar and usage
Verb: To exchange, barter, settle, speak, or open.
Noun: An exchange; a state of joy; the trigram ☱.
Adjective: Joyful, open, or responsive.
Distinctions
1. Satisfaction: The term can refer to both the mechanical settlement of a financial debt and the psychological state of feeling satisfied.
2. Yielding vs. Weakness: In philosophical contexts, "yielding" refers to a strategic or natural responsiveness backed by internal firmness, rather than passive weakness.
Translator notes
The core semantic logic is the movement from an interior state to an exterior relation (e.g., thought becoming speech; feeling becoming shared). Translators should also consider the literal sense of "breaking open" or creating a physical aperture if the surrounding imagery suggests physical manipulation.
Decontextualized translator aid. This page describes plausible lexical range; it does not choose what the term means in a particular passage.