"I've examined those Spirit Land Grand Formations too, but I never felt anything like that," Xuan Yuanjun said, his brow furrowing slightly.
"What if you couldn't sense it because your comprehension of the Treatise on Enlightenment wasn't deep enough?" Ji Xuanying said. "Besides, your so-called examinations were only around the perimeter. You never actually entered the Spirit Lands, so your impressions might not be accurate. Of course, the incomplete formation in the Desolate Domain certainly doesn't count. Even if you entered it, you wouldn't gain anything. Even if it had been complete, his comprehension of the Treatise on Enlightenment most likely wasn't that deep back then, and he hadn't considered these things when setting up the formation. You still wouldn't have gained anything. But I think the Spirit Land Grand Formations here in the Immortal Spirit Domain very likely contain his comprehension of the Treatise on Enlightenment. After all, this Valley of Death only appeared after that great upheaval in the Desolate Domain. I think he must have put considerable thought into a place like this. It's unlikely that it was only meant for cultivating puppets. Cultivating puppets was probably just a way to avoid wasting the formation he had finished setting up. His main purpose in setting up a formation like this was still to incorporate his comprehension of the Treatise on Enlightenment into it."
As Ji Xuanying spoke, Xuan Yuanjun's eyes grew brighter and brighter.
"Why didn't I think of that?" Xuan Yuanjun murmured. "That really is possible. If we could enter those Spirit Lands in the Immortal Spirit Domain, perhaps we could discover the mysteries within."
"We have the Cold Jade Key," Huang Xiao said.
At Huang Xiao's words, however, Xuan Yuanjun drew a deep breath and said, "We'll have to consider this carefully. The last Spirit