The realm of Heaven’s Mandate was about cultivating the violet palace, or the central dantian. Despite being inside a body, it was unfathomably vast and mysterious just like the brain, impossible to be understood completely.

Just ten percent of development was amazing enough. The violet palace was about increasing strength while the brain was about improving intelligence.

It was relatively difficult to widen the violet palace. Each attempt could require up to several dozen years. Because of this difficulty, after each successful step, the cultivator would gain another fifty years of life in addition to the five hundred.

Feiyun sat among the boundless and surging spirit vein with all 360 of his meridians opened. They turned into 360 maelstroms that were crazily absorbing the spirit nearby then refined it into violet energy within the middle dantian.

An ordinary cultivator would only have one to ten strands...