Yun Chang faced the same problem as Qin Hao. If he could cultivate this Secret Art, he would no longer have to worry about it.
He could even have reached eternal true god perfection back at the Heaven and Earth Divine Lake.
"Tempering Heart Will?"
Qin Hao was startled, a strange glint flashing through his eyes.
To everyone else, this Secret Art was simply an aid for advancing to Ancestral God. Of course, even after that advancement, it would still be immensely useful for improving their cultivation.
But Qin Hao knew...
Just how useful this Secret Art would be to him.
The Heavenly Derivation Book cultivates the path of supreme laws!
With just the first level, primordial beginning initiation, I can control a portion of the power of laws...
But its foundation is still Heart Power—in other words, Heart Will.
Qin Hao's expression remained unchanged, but towering waves had already surged through his heart. Although the Heavenly Derivation Book has a Heavenly Derivation Space where I can temper my Heart Will, its primary focus is still controlling laws. It's essentially a combat method. I can control and alter Heaven and Earth Rules to fight and kill my enemies.
This was also the main reason Qin Hao had been able to contend with Commander Luo Wei, the Green Demon Commander, and the Lotus Commander in the Heaven and Earth Secret Realm. Without the Heavenly Derivation Book, even using the Primordial Feathered Wings and the Supreme Sword Tower, he would have struggled to withstand the Three Ancestral God Commanders at once.
The significance of the Myriad Spirits Grand Vast Sutra to Qin Hao was beyond question. He could cultivate it to temper his Heart Will, strengthen his Heart Power, then feed that power back into the Heavenly Derivation Book.
When he used