Six hexagrams: more used for a specific thing, it will be more detailed.
Plum blossom: it is closer to the origin of the Yi people than it is. Simple and convenient, but also a multi-purpose.
If you master any of the above, there will be no shortcomings, but it is easier said than done.
The current theories are all a hundred schools of thought contend, and the good and the evil are mixed. ......
Uncle Bean: I don't know, I'm a little skeptical. ....