Improvement?
When Davis walked out of the Treasury along with Threelotus and Yotan accompanying him out, he saw the Stargaze Soul Radiance Tree on one of the garden yards. The fruits of this tree had already grown to their middle stages but have yet to reach the final stages and mature. He purposefully let it be like that since he didn't want people to know that he could quickly grow them as long as he had enough energy. Besides, his main body was immersed in increasing Soul Forging Cultivation, so he felt that he could wait.
However, since he reached the Peak-Level King Soul Stage, he was of the opinion that he should use these fruits to increase his lagging comprehension of heaven and earth through resonating his soul with which was collecting called the mysteries of the soul. But he also felt that it wasn't too late but even beneficial for him to comprehend these mysteries after breaking through to the Emperor Soul Stage.