Why do the novel describe stronger people's levels as "human lord", "sage", and "great emperor"? I'm currently on around chapter 350 and it never elaborates the actual cultivation level. The glossary only lists cultivation up to "Heaven Ascension" but I have no idea what strength a human lord, sage, or emperor has. I recall when they measured Yi Yun's talent, he got Mystic which was the level of human lord I think. Above that are sage and emperor. Is this used to merely describe people's talents? Are we blind to the stronger people's actual cultivation levels then?