八卦 · Eight trigrams
乾☰、坤☷、震☳、巽☴、坎☵、離☲、艮☶、兌☱
Heaven, earth, thunder, wind, water, fire, mountain, and lake form the eight foundational images.
Each trigram is made of three solid or broken lines. It names a natural image, but also patterns such as initiative, receptivity, movement, entry, danger, clarity, stillness, and joy.
上下卦 · Upper and lower trigrams
兩個三爻卦上下相重,成為一個六爻卦。
Two trigrams—one above and one below—combine to form a six-line hexagram.
Eight trigrams combine into sixty-four hexagrams. Meaning arises not from a symbol alone, but from the relationship between its inner and outer images.
卦辭與爻辭 · Judgments and line texts
一卦有卦辭,六爻各有爻辭。
A hexagram has an overall judgment, while each of its six lines has a line text.
The overall text and the individual line text work at different scales. Reading only a hexagram name can miss the situation, position, and timing carried by a particular line.
時與位 · Time and position
爻有陰陽,也因所處之位而顯出不同關係。
A line is yin or yang, yet its significance also depends on the position it occupies.
The I Ching pays unusual attention to whether conduct fits its moment. The same quality can be timely in one position and excessive, premature, or belated in another.
閱讀原則 · A reading principle
觀象、讀辭、明時、知變。
Observe the image, read the words, understand the moment, and notice change.
This is a modern reading summary, not a quotation from the received text. It keeps reflection grounded in the classic while avoiding claims of certainty or professional advice.