The deeper layers, such as the Spirit and Body Unity Cultivation Method, involved the Saint Domain, whereas the Inner Heaven and Earth Cultivation Method concerned the evolution of the Inner Heaven and Earth. Both had already completely surpassed the level of a Great Cultivator.
Unless one learned someone else's cultivation method, even Sudden Enlightenment held no meaning.
Yet he was destined not to learn someone else's cultivation method.
The Spirit and Body Unity Cultivation Method could still reference others' methods, but the Inner Heaven and Earth Cultivation Method was utterly impossible.
"The Heavenly Dao Heart was a state I derived using the Heavenly Dao, as if letting you possess the heart of heaven and earth. Even the Inner Heaven and Earth Cultivation Method, which was about the evolution of heaven and earth, could be simulated."
