It is said that after the Shadow Sequence ascends close to Legendary, the shadow of the Transcendent will also come to life.
The shadow begins to speak, the shadow has thoughts, the shadow tries to replace the self.
If you successfully prove the Path of Destiny, the shadow will become your second body, essentially a clone in a complete shadow form. Of course, if you fail, then there's nothing more to say; the shadow is likely to replace your thoughts, soul, and will.
The mysterious knowledge currently in Shawn's brain is actually his consciousness clone, so the way it manifests is a bit like an auxiliary system in a game from his past life, a concept akin to an NPC.
If he didn't go through the process of seeking the Way, the consciousness of mysterious knowledge would become his second personality.
The ultimate goal, like other Extraordinary Paths, is to completely replace Shawn himself, becoming the master of this body, which in reality means losing complete control!
