He realized that compared to yesterday, today's wind seemed to carry different scents. It was moister and also carried the smells of mud and fish, and that wasn't a bad thing. How can the canals be so clear? Because water comes flowing from the source. The canals around the Divine Path of the Mausoleum of Books were so spotlessly clear due to this principle. With the reopening of the Garden of Zhou, it should have begun to develop in a positive direction.
(TN: "How can the canals be so clear? Because water comes flowing from the source" is a line from a poem/song called 观书有感二首, which roughly translates to "Two Songs on Feelings from Reading Books", authored Zhu Xi, a famous scholar of the Song Dynasty.)
The group of monsters had gotten somewhat closer to the mausoleum. They still seemed like a dense mass, but from a distance, he could still perceive that there had been some sort of change.