What does divination mean by one yang, one yin and one saint?

Guagua means "one yang, one yin and one saint".

The meaning of divinatory symbols:?

1, one plane is down and the other plane is up, that is, one yin and one yang (for a living) is called holy grail, which means that it can be, agreed and successfully completed. ?

2. Two planes are up and the convex surface is down, that is, two yang. It's called Yanggua (laughing cup), which means that the immortal is undecided and it is difficult to do things, so it needs careful consideration. ?

3. Two planes are facing down and the convex surface is facing up, that is, two yin. It's called Yin Gua (Yin Cup), which means no, the gods can't bless it, and the success rate is low. If you insist on doing it, it may be full of twists and turns, which is difficult to achieve.

Discard hexagrams:

If you ask the gods something or a reason, you must burn incense and pray first, and explain the reason. Then hold the tips of a pair of holy hexagrams in your right hand, throw them up slightly, and the hexagrams will naturally fall to the ground, and one of them will appear. In general, Taoist temples ask for divination, and one divination breaks good or bad luck, while the holy divination is auspicious and others are fierce. Some people throw it three times and get a combination of hexagrams. Then, according to the combination of hexagrams, find the content of hexagrams and judge the good or bad of things.

What's more important here is that in Taoist activities such as crossing over, fighting against disasters and playing phthalein, it is often necessary to play hexagrams to manage affairs, which is very important for the performance of the ceremony. For example, you have to ask the hexagrams several times before you can summon a handsome guy, serve and finish, and the displayed hexagrams should be in the prescribed order, some should be yang, some should be yin and some should be holy, so not everything should be holy.