Above the three realms, there exist two more: the Immortal and the Path-Opening.
Practitioners in the Immortal realm are Undying Immortals, their work interwoven with creation, achieving immortality.
Path-Openers plunder the laws of heaven and earth, borrowing the power of these laws.
The Tao Devices mentioned by Chu Lingxian are artifacts of Path-Opening practitioners, containing a thread of the laws of the universe.
Although Chu Lingxian was very interested in the God of Slaughter Hall, one of the four major forces in the Three Thousand Worlds, time was pressing. Just after stepping off the transmission array, Chu Lingxian and Xie Tian both felt the world spin around them and arrived on a battle platform.
This battle platform was located within the space of the Reincarnation Compass.