Expansion: It happens after he dies in the water prison
He uses these newfound powers to drive Luo Bingge mad
Bingge thinking 'Man I wish I could have tormented Shizun more' and going to sleep and finding he CANNOT CONTROL THE DREAM
Because this isn't a dream
But it's so horrific that he can't even tell the difference between it being a dream, reality, or something else because it's simply too much all at once. Even a heavenly demons mind was not suited for such visuals, twisting horrors and everchanging rainbows
And every time he invokes Shen Jiu's name, he gives Shen Jiu access to his mind to shatter it further and further, slowly detereorating the mind of the man that tormented and killed him and Yue Qingyuan bit by bit
Luo Bingge slowly becoming a recluse. Twitchy at any strange shapes, at tendrils and eyes, colors that are too vibrant hurt his brain because they remind him of the visuals he's been forced to experience in his 'dreams'
Becoming a shell of himself, driven to madness until he decides to seek out this horror himself with the use of Xin Mo... And it being the last thing he ever comes to regret.
Luo Bingge being twisted and mishapen in Shen Jiu's domain, until he does not even resemble man nor demon and is something new, and in constant agony. His form constantly twisting, and reforming, and trying to set itself back with blood parasites but being simply unable because they both no longer belong to Luo Bingge's will, but to Shen Jiu's ever concious mind. Even if they did work as they should, his form is destroying itself and ripping apart at seams, reforming in places that aren't right.
And finally, for once, Shen Jiu is in control, and Shen Jiu has freedom. But even Shen Jiu isn't the same as he once was. No human mind could survive the becoming of an outer god.
He is every Shen Jiu that has ever existed in every universe and will ever exist simultaneously, as well as being everywhere and nowhere. His body exists in the veil between, his mind surrounding all that exists, watching, waiting for his name to be invoked, or for someone to seek out knowledge they shouldn't, before they bring out the madness that was once Shen Jiu.
