Originally, with the aid of the Bright Abyss Mirror, he captured the first light between heaven and earth, and from it, he realized the Extreme Light Wings.
The energy fluctuation of that thread of light was a trace.
It was just that his naked eye couldn't capture it, but the Bright Abyss Mirror directly preserved this trace, and slowed it down a million times, allowing him to observe it.
The trace had a certain degree of similarity to the mark on the stone pavilion before him.
Chu Ning's gaze fell upon this scratch, wanting to memorize it, but strangely, even though his eyes had seen it completely, once he closed his eyes, he couldn't recall the trace at all.
He tried several times in succession; with open eyes, he could see the trace clearly, but as soon as he closed his eyes, the trace disappeared from his mind.
"Is this what it feels like when knowledge flits through the brain without leaving a trace?"