Because you weren't always climbing upwards; sometimes you were ascending, sometimes descending. Whereas I was consistently climbing upwards, naturally, our distance was bound to grow further apart."
Ling Xi asked with a curious expression, representing everyone's perplexity, "But how did you determine when you were climbing and when you were descending?"
"It's quite simple, because of our bodies," Li Ke explained, looking at the group, "Although the formation here is very clever, obscuring many of our senses, making it impossible for us to use sight to discern when we are going downstairs or upstairs, and even making the sensations of climbing and descending feel identical.
However, there is one thing the formation couldn't change, and that's the fatigue of our bodies. Climbing upstairs is certain to be more tiring, consuming more energy.
If I feel more exhausted, then naturally I am going upstairs; if I feel that it's easier, then naturally I am going downstairs."
"Energy?"
