Chapter 258 - Chapter 251: Sitting and Discussing the Dao

"The Qiankun Instrument can detect a Celestial Demon's magnetic field for one fundamental reason: Celestial Demons typically possess their hosts. This possession creates a fissure between the Celestial Demon True Form and the physical body, preventing a perfect fusion. Consequently, their magnetic fields can't be fully concealed. This is also why a Celestial Demon's True Form remains largely unharmed even when its host body dies. They are merely inhabiting the human body; it's just a vessel."