A week passed by at a snail's pace for Mira as she spent most of her time holed up in a pitch-black cavern deep underground. There wasn't a waking moment she wasn't training her darkness affinity or Yin Fire, though she spent much more time on the former.
This past week was incredibly beneficial to Mira, not just with her affinities but her worldview as well. She learned not to take the elements at face value and to try and look deeper into the world around her. Following that simple advice, Mira saw an increase in efficiency during her training, which is saying something.
Increasing one's comprehension of the elements isn't just about seeing them and hoping to reach enlightenment; it's about asking questions and formulating answers based on those questions.