To open the first few Gates of the Eight Gates, one generally had to undergo countless trials and tempering. One's body also had to be tough enough to meet the standard; otherwise, let alone injuring an opponent, one would likely lose one's life the moment the Gates were opened.
The latter Gates placed an even greater burden on the body once opened. This burden came from the body's meridians being unable to withstand such an enormous amount of chakra, causing them to rupture.
As for the Seven Dark Acupoints, to be honest, not many people in this world had studied such things. However, the important organs within the human body each corresponded to one of the seven emotions.
These seven hidden acupoints were concealed at the locations of those vital organs. Like the Eight Bright Gates, they were immense locks sealing away human potential. Yet unlike the Eight Gates, no one knew how to open the Seven Dark Acupoints.
Now that Li had seen the Third Elder's state, he was suddenly enlightened. The Seven Dark Acupoints represented the seven emotions of man. If one truly wished to unlock this power, there was only one way: completely immerse oneself in that emotion. At this moment, the Third Elder had condensed his sorrow onto the blade. For some reason, Li felt a measure of fear toward such a sword.
Indeed, if Li's true body had faced the Third Elder, the latter would have been pathetically weak. Yet what Li feared now was not the Third Elder, but the sword in his hand. If one were truly struck by such a sword, then unless one had reached the rank of a Saint, one's entire cultivation would be tainted, and one would forever fall into endless tribulation!
After that thought crossed Li's mind, his