Karsha is Overpowered
Karsha's meridians started absorbing the lightning energy like crazy. The process was painful, but he didn't back down. The pain was unbearable, yet he pressed on. He knew that only through suffering could one step into the realm of absolute power. From the start to this point, he resisted the urge to pass out.
Energy surged through the nine thick meridians connecting to his Dantian, or what most people call the Mana/Spiritual Core. These nine meridians link the brain, heart, left arm, right arm, waist, left knee, right knee, left foot, and right foot. They facilitate the flow of energy throughout Karsha's body.