After Feng Yu had taken him to Pohnpei Island, Lu Ban had more or less figured out the true nature of the missions in the Silent Land.
They were essentially this: the true gods plucked a segment of history from another world and used it as a stage, sending Chosen of the Gods into it. Once the result they wanted had been achieved, they returned that segment of history to its original place.
To those gods, every mission in another world was like an unread portion of a novel. They could skip freely to the beginning or the ending, while throwing the Chosen of the Gods inside was akin to carrying out a black-box operation.
They were observers on a higher level than the Chosen of the Gods. If mortals were NPCs in the stories of the Chosen of the Gods, unable to perceive the timeline, then to those gods, the Chosen of the Gods were likewise toys incapable of perceiving changes to the timeline.
If one wanted to truly control oneself, one had to jump outside the timeline one occupied and survey the other world from above.
This was probably what Daoist He Ming meant by "ascension."
Only after leaving countless marks of oneself throughout another world and becoming a law without any concept of time could one truly break free of time's restraints and gain genuine freedom.
Thus, Lu Ban and the others were currently in the period when "the Gray Tower of the Night Country had yet to be built." In the end, the Gray Tower had indeed been established, and countless Chosen of the Gods might already have entered the missions and failed along the way.
The reason Lu Ban believed that the Chosen of the Gods who had succeeded were them rather than anyone else