'The studies have already improved my movement techniques,' Noah thought while inside his cave, 'But I can't understand the core aspects of these laws. I'm still far away from approaching the transformation into a dark element.'
Noah was continuing his studies during his time inside the cave. He didn't care that his behavior was wasting the group's time. Heaven and Earth's mission would have to wait for him.
His friends were partially aware of that behavior. They knew Noah enough to guess how long it would take him to recover, so they understood that he was up to something once that period expired. Still, they didn't even bother to contact him and waited patiently in the last area of the dimensional tunnel.
The cultivators from the human forces eventually understood that Noah was doing far more than recovering, but they decided to ignore the matter. Noah's mental resilience had surprised them. Some had even developed a deep respect for him.