The Fu Gua in Zhouyi talks about the repeated way, which refers to the Gui Gua and the repeated hexagram, and the Fu Gua and the Gui Gua and the repeated evolution of yin and yang. Let’s look at this process. The Gu hexagram is Yin to eliminate Yang, the Yin hexagram is Yin hexag

Repeat: Repeat the way, and it will take seven days to return.

Zhouyi's Fu Gua talks, repeating the way, talking about the repetition of the Gua hexagram, and the repetition of the Gua hexagram, talking about the repetition of the yin and yang.

Fu Gua is the zhen down and Kun up. Zhen is thunder and Kun is the earth. When combined, it is called the land mine. It is the cover of , , leaching the top and the bottom is the complex hexagram. That is, a yang comes back. Yang line From the upper line of the pulp hexagram to the lower line, it is the Fu hexagram. The Yang line is the first to be Fu. The Fu hexagram is a large Zhen hexagram. Zhen is a smooth road and a way, which is conducive to the repetition of entering and leaving.

In and out repetition is relative to the Gu hexagram. Fu is the opposite of Gu hexagram, which means that Fu hexagram is the return of the Gu hexagram. Fu hexagram is a large Zhen hexagram, and the Gu hexagram is a large Xun hexagram. Therefore, this entry and exit repeatedly refers to the repetition of Zhen and Xun, which is the so-called synonymous correspondence. Zhen is the exit, Xun is the inlet, Zhen is the inlet, Xun is the inlet, Xun is the yin breath, and Zhen is the yang breath.

From the message hexagram, yang disappears from the ground and resumes from the ground. Let’s look at this process. The Gu hexagram is Yin to eliminate Yang, the Yin hexagram is Yin hexagram, the second Yin hexagram is the Connect hexagram, the third Yin hexagram is whether the three Yin hexagram is born, the fourth Yin hexagram is Guan hexagram, the fifth Yin hexagram is Bai hexagram, all of which are Yin lines, which are Kun hexagrams. If one line is born for one day, this is six days, then when one Yang is born, it is the Fu hexagram, which is seven days. Similarly, the Fu hexagram is Yang to savage Yin hexagram, and the Fu hexagram is born with Yang, and the Qian hexagram is six days. Qian reversal of the one Yin hexagram is also seven days. In this way, the Fu hexagram is endless, and the Yin and Yang news is the way of repeating. In fact, it is the evolution of Yin and Yang news.

Yi Lin's remarks on the negative story, the movements are bright. The incoming point here is Xun, and the outgoing point is Zhen. Zhen is the action, Zhen is Dan, and light. This is also a repeated comment on entry and exit.

From the perspective of the entire Fu hexagram, the lower hexagram is shaking, the upper hexagram Kun is smooth, and the yang breath moves smoothly. When it comes to the Gu hexagram, the yin breath disappears, and the yin and yang are hard and soft, and the changes in the way of heaven are interpreted.