What is a circle on the knife of gossip six hexagram?

1, which is the writing method of arranging hexagrams with words when predicting with "six hexagrams".

2. Among the six hexagrams in the original hexagrams, a dot (,) and a big circle (O) on the right side of the text represent Yang hexagrams (a long horizontal line in the same hexagram painting). The two dots (,,) and the cross (X) both represent Yin (two short lines in the same hexagram painting).

3. The difference is that the Great Circle (O) and the fork (X) are both variants of the original hexagrams, in which the Yang becomes the Yin and the Yin becomes the Yang.