After the Seven-Colored Essence vanished into the depths of his mind once more, Lin Hai finally began carefully examining the changes in his body.
His purpose in coming into contact with the Mind Stone this time had been to strengthen his spiritual power, so instead of focusing on the Life Force in his Lower Dantian as he had before, he turned his attention to the Upper Dantian, which he rarely took the initiative to inspect.
The Upper Dantian was the residence of the spirit within the human body. It was located in the area between the eyebrows, extending inward about three inches, roughly corresponding to the Mud Pill Palace in the brain.
Daoists called it the Mud Pill Palace, Bright Hall, Purple Mansion, and Kunlun Summit. It was the "command center" governing human consciousness, thought, and higher neural activity.
The Lower Dantian stored essence and nourished qi; the Upper Dantian stored spirit and nourished the spirit. One was yin, the other yang, and together they formed the central nexus of the human body's miniature universe.
Even an ordinary person born with powerful spiritual strength, someone barely capable of inner vision, could only see a hazy expanse of chaos within their Upper Dantian. There was no up or down, no sense of direction—only an indistinct, blurry space.
As Lin Hai's strength had continuously grown in the past, his Upper Dantian had ceased to be like the hazy chaos of ordinary people, but there had not been much about it worth mentioning.
If there had been anything special, it was that faint flashes of spiritual light would occasionally streak through his Upper Dantian. That was proof of his superiority over ordinary people.
But now, everything was different. His Upper Dantian seemed to have undergone a heaven-and-earth-shattering transformation. The chaos had seemingly been