The Tyrannical Might of External Oscillations

In the endless dark sky, a huge white screen was flickering, as if it was hiding the world's deepest secret.

Master looked back at that blank screen as a pondering look appeared on his face.

At the sight of this, Qin Fen's eyes were filled with incredulity. What is it that can give even a theoretical master of martial dao a problem deciding?

"Sigh..."

Master stared at Qin Fen's face for a long time. Slowly, the furrow on his brow started relaxing. "Had you not have touched the threshold of oscillations on your own, had you not have grasped the most basic oscillations by yourself, had you been taught completely by me, I would have never shown you this picture. But contrary to what I had expected..."