Previously, due to his exceptionally high Mental Attribute Panel, he neither needed nor could utilize such training methods. Moreover, since he hadn't encountered anything Transcendent before, he could progress conventionally, gradually improving his attributes and achieving mastery as a matter of course. But now, as he was on the verge of advancing to the Transcendent realm, relying on such slow cultivation might not be feasible.
Therefore, "Stealing the Heavenly Mechanism" was perfect.
Destroy then rebuild, and step into the Transcendent!
Another point was that after creating his own "Heaven and Earth Natural Technique," Zhang Beixing could harness the entirety of heaven and earth for his use. Although he hadn't yet entered the Transcendent realm and couldn't fully realize the core philosophy of the "Heaven and Earth Natural Technique," he could still engrave the understanding of all things in his mind.
Furthermore, someone had mentioned Oizaki's Eight Challenges.
