Everything went smoothly, except for his own cultivation.
After this period of explosive training, he had successfully advanced Qi's puzzle to Shi's puzzle, yet still saw no opportunity to solve it.
Would he really live to old age still puzzled as ever?
His two dantians were now like two black holes, which seemed full, but each influx of spiritual inspiration could stretch them further, like a balloon. He had no idea where the limit was. Would he burst from the pressure and end up with a useless dantian?
In the cultivation world, such situations were not uncommon; it was the case of greed not being satisfied until it swallowed more than it could handle. He wasn't being greedy; he simply had no other choice. As long as his dantian could still be filled, he wouldn't be able to achieve the effect of fasting, and this was the source of his frustration.