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Yao is the basic symbol of hexagrams. In the Book of Changes, Yao represents yang and yin.

In the Book of Changes, hexagrams are composed of six hexagrams, each of which can be a yang hexagram (indicating masculine gender) or a yin hexagram (indicating feminine gender). The shape of pulp can be represented by solid pulp (positive pulp, represented by solid line) or virtual pulp (negative pulp, represented by dotted line).

Sixty-four hexagrams are formed by the change and arrangement of hexagrams. Each hexagram has a specific symbolic meaning and explanation, which is used to predict and explain various situations and events in life. This change can be determined by throwing six chips or using three coins, which is called divination.

In the Book of Changes, Yi is regarded as a symbol of nature and human life. Yang Yao represents masculine, positive, bright and active power, while Yin Yao represents feminine, negative, dim and static power. The Book of Changes reveals the operating rules of the universe and the code of human behavior through the combination and change of ideas.

It can also be used to represent binary numbers. In computer science, information is used as the basic unit to represent and store information. Eight characters can form a byte to represent a character or number.

Xian's Interpretation of Fuxi Yi

Since the creation of Yi by Fuxi in ancient times, the symbolic expression of Yi has also gone through an evolutionary process and has different forms of expression. Symbols are the result of evolution. From the perspective of time and space, he is also a basic expression of the state of time and space and the foothold of Fuxi's basic logic.

It represents the overall function of yin and yang interweaving. For the earth, it refers to the interweaving effect of the movements of the sun and the moon on the earth, which means "functional interweaving".

Its basic symbol uses "-"to intuitively indicate the positive effect of the sun, and uses "-"to intuitively indicate the effect of the moon reflecting the sun on the earth and the effect of the moon itself on the earth, that is, two "-"indicate the negative effect. In this way, two characteristics are formed, which are represented by "-"and "-"respectively in Fuxi Yi, belonging to yin and yang, and are called "-"as yang and "-"as yin respectively. This is also the primary basic symbol representing Yin and Yang, which can also be called the first or primary symbol.

Reference to the above content: Baidu Encyclopedia-Yi