How thick are six copper coins?

The six copper coins are about 25mm in diameter and weigh about 3g.

When the six hexagrams are played, the flower face of the copper coin is used as the back and yang, which is the image of yang and simplicity; Literally, it is yin, which is an image of yin and qi. With three coppers, you can take the principle of three things and change things.

Knowing the principle of six hexagrams of copper coins, any tool can be used as a divination as long as it can distinguish between yin and yang. Such as coins, leaves, bottle caps, etc. Can be used. Why bother with copper coins? Daoyuan sometimes finds three pieces of paper for divination when copper coins are inconvenient. Just draw a few strokes on either side of the paper as the reverse side. As long as the idea arrives, divination is still accurate.

Shao Yong, the founder of Meihua Yishu, said: Before thinking, ghosts and gods don't know. Whether six hexagrams are allowed or not has nothing to do with divination tools. The key lies in whether the mind of the soothsayer is single-minded and whether the mind of the soothsayer is correct.

It is recognized that six hexagrams are hexagrams of three coppers, but the probability of hexagrams of three coppers is even, but why not use two?

If it is two coppers, you can record it like this:

When both blocks are positive, they are positive.

When both blocks are negative, they are negative.

When one is positive and the other is negative, it changes from yang to yin.

One is the opposite of the other, and the yin turns to the yang.

Isn't it just right to record six hexagrams like this? Many people are puzzled by this, but they usually avoid this question.

The fact is that this is wrong. The above seems reasonable, but in fact the probability is not balanced.

If two copper coins are used, this involves another problem. How to determine whether Yin turns to Yang or Yang turns to Yin?

For example, it is determined by the left and right, the left is yin and the right is yang, and it is recorded that yin becomes yang. If it is up and down, it can also be defined like this. Even if two copper coins overlap, the order of the top one and the bottom one can be defined by heaven and earth.

So, it sounds perfect, but it's actually wrong.

Because since the difference in time or space is added to the determination of yin changing into yang or yang changing into yin to judge the order, when both pieces are heads or tails, the difference in time and space should also be added to judge the order.