I Ching/Core Hexagrams

Core Hexagrams
The Core Hexagrams (Core Gua) are constructed from the middle 4 lines of a non-core Gua, by taking lines {2, 3, 4} as the lower trigram of the Core Gua, and lines {3 ,4, 5} as the upper trigram of the Core Gua. Lines 1 and 6 of a non-core Gua are ignored. The Core Gua is also called the Mutual Gua. In Chinese, the term "Gua" is written as 卦. A Core Gua provides another level of understanding about a person's current situation.

The Core of the Core Hexagrams are constructed from the Core Hexagrams, using the middle 4 lines of the Core Hexagrams. All the 64 Hexagrams can be converted into 12 Core Hexagrams which in turn, using the same process, can then be converted into 4 Core of the Core Hexagrams.

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