In"The I chingWhat do you mean, "hexagram

In "the book of changes" hexagrams, "a" and "-" is referred to as "hexagram".In belong to the explanation of "pass", most of the time in the use of the general words, such as firm and soft, Yin and Yang, and "a" represents the Yang, strong, powerful, "-" represents the Yin, soft and weak.Therefore, in the "book of changes", "a" is referred to as "just hexagram", also known as "Yang hexagram";"-" referred to as "the gentle hexagram", also called "Yin hexagram".