From elementary insight to mandate, each of a mystery's six levels carried extreme difficulties. But the hardest to break into were the first, the fourth, and the last. Profound enlightenment in any Mystery was a massive leap, enabling the cultivator to accomplish legendary feats such as creating tsunamis out of thin air or making flame arrows rain from the sky. Before the Grand Cataclysm, most top Empyrean Monarchs were at the profound enlightenment stage, while Demi-Emperors either were at profound enlightenment or at the sublime state. Granted, Heaven's laws stunted their progress, Harun's Mystery cultivation speed was still off the charts.