A "Closed for the Day" sign was hung on the front gate. I returned to my room, sat down cross-legged, and began my research.
This research lasted five years. The final conclusion was that it was effective, but not by much.
It slightly accelerated the rate at which I absorbed light and dark energy from the external environment, and the mobilization of light and dark energy inside my body became much faster. Furthermore, the sword qi I slashed out became more solid, very much resembling the sword qi my great-grandfather used to talk about. Whether it actually was, however, I had no way of knowing, as I had never seen it before and had no basis for judgment.
Chapter 16