The opening of the Niwan Palace meant that Zhu Wuwan's comprehension had increased by a large margin.
Originally, Zhu Wuwan's comprehension ability was already very strong. Now that he had cleaned up the filth in his Niwan Palace and swept away the dust on his spiritual intelligence, Zhu Wuwan's observation of everything became more thorough. Naturally, his comprehension ability had also increased a lot.
A large amount of mental power swarmed into the Niwan Palace and soon formed a three-meter-wide mental fog. The Niwan Palace was the same as the lower dantian. After opening it, it was also in between reality and illusion.
It could be infinitely large or infinitely small, so it could not be measured by common sense.