"With this thing, I really feel much more at ease.
"No need to be on edge every day from now on.
"This device is quite good."
Wu Qingyun also relaxed, but her brows and eyes remained stiff, her expression dull.
She pointed to the device outside.
"What's the principle?"
Professor Zhang explained with a smile.
"As for the principle, it's not very complex.
"What it actually detects are the Sea of Consciousness and Sea of Qi..."
The Forehead Sea of Consciousness and the Dantian Qi Sea are the two great secret chambers of the human body.
Generally speaking, cultivators of Sequence Nine only learn related knowledge.
Cultivators of Sequence Eight can open one of the secret chambers.
For instance, the Sequence Eight Talisman Path's [Talisman Person] can open the Forehead Sea of Consciousness secret chamber.
The Sequence Eight Immortal Martial Path's [Blood Man] can open the Dantian Qi Sea secret chamber.
