What is Tonggen _ What is uprooting in the eight characters?

Tonggen, like the head stem, is called Tonggen when a word in the heavenly stem appears in the eight-character earthly branch. Tonggen can be understood as strengthening the power of the five elements, and the power of Tongben Qigen is the greatest.

for instance

There are several kinds of roots. Let's take Jia Mu as an example. For example, in the sky, Yin appears in the earthly branch. Because the qi in the earth branch is A, this is called "this qi leads to the root". For another example, there are nails in the sky and nails in the ground. Because the sea is in the middle and the gas in the middle is the nail, this is called "miscellaneous gas leads to the root". If in the eight characters, the sky is dry and things are dry, and there is neither a nail nor a sea in the ground branch, then it can be understood as "nailing wood is empty and rootless."

The same root also needs to remember the following knowledge points

1, tongben gas root

Eight-character heavenly stems A, B and Mu see the ground branches as the roots of qi, and the roots are strong.

Dry fire on the eighth day, see the ground branch at noon, which is a strong root.

The eight-character sky is dry and the soil is dry, which shows that the soil branch is not a strong root, but a strong root.

When the eight-character sky is dry, it is the root of qi and the root of strength.

Geng Xin Jin, a heavenly stem with eight characters, saw that Shen You, the earthly branch, was the root of invigorating qi, and it was a strong root.

The eight-character Tiangan Guirenshui regards Haizi, the earthly branch, as the root of the qi and the strong root.