He Cheng paused for a moment and saw Li Yun nodding slightly. He continued, "The purer the bone marrow is, the stronger the hematopoietic function will be. The purity of the bone marrow is related to the inner strength. The stronger the inner strength that goes through the bone marrow, the more pure and vigorous the bone marrow will be after being purified and preserved. The reason why the nine practice methods can be clean and transparent is that after nine times of self-destruction, the inner strength that is condensed again will be very powerful."
At this time, Li Yun asked, "Uncle Cheng, it is said that this purification is only for the hematopoietic area, not for the use of skin and flesh. In other words, a person in the Purification Realm is not better than a person in the Tendon-Ch
