This time Li Shiming went into closed-door cultivation for fifty days. The 'Thunder Rule Imprints' inscribed in his five Nascent Souls were greatly replenished, making the previously blurred 'Thunder Rule Imprints' much clearer.
But this enhancement only digested a very small part of the comprehension of the Thunder Rules within the Grotto Heaven. Due to his own realm limitations, this was the maximum he could improve for now.
If he wanted to continue enhancing the 'Thunder Rule Imprints', he would need to raise his cultivation level.
It's estimated that in the Cultivation World, there are almost no Great Cultivators whose comprehension of rules surpasses their cultivation speed.
Li Shiming essentially received all the experiences of a Half-step Great Power regarding Thunder Rules, waiting only to be absorbed when his cultivation level matched.
