So simple explanation for the previous chapter at the end is, in this au Silent Salt has the ability to see a cookies inner soul and heat their true thoughts and emotions, a past ability that was meant to use so he can solve conflicts and unite people in peace but he never really used this ability all that much, and as for what he saw when he looked at Shadow Milk...
Hehe :))

Anyways unless you haven't noticed, I'm a heavy Shadow Milk glazer, a very delulu one infact :D.
They gave him peak powers and more and I will not let it go to waste (Probably).
That's why I will glaze and make jokes about him half way lol.
Funfacts, Fount of Knowledge knew about Salt of Solidarity plans for new virtues, he was the one who created the seed actually-
Hold on let me give y'all the story view.

Fount.o.k: you say... You wish for there to be new virtues after us?
Salt.o.s: indeed... If your calculations and my predictions are true, this world will benefit greatly from new virtues that are wiser than you or i.
Fount.o.k: I see your point and you are right... Cookie kind is evolving faster then we could ever hope to keep up with... Sooner or later we may not be fit to guide them no longer... So new virtues may very well be what they need.
Salt.o.s: exactly my thoughts... Which is why I seek for your perspective on this matter... If it were the others... The opinions would be... Mixed.
Fount.o.k: yes I understand... And I have just the thing to help.
Salt.o.s: hm?

Fount Of Knowledge casted a spell, a giant magic circle appears and specs of star dust flies in the air, each gathering into a singular point in the middle of the magic circle, until it forms into a seed.

Salt.o.s: that spell...
Fount.o.k: my creator taught it to me, lovely is it not? This seed was created with a spell made by the witches along with a powerful amount of life powder, when you plant this seed, one day it will grew into a massive tree that bares the fruit of the new virtues... The hope of the world, but it will not remain safe in yours or my hands, nor will it be safe with the others at best, you should hand this seed to Elder Fearie and just tell him the creators granted this seed as a answer to your prayers, I'm sure he would be more then willing to aid you in your plans.
Salt.o.s: you are right... Thank you, I shall bring this seed to him... So that one day, the tree grown from this seed shall grew new fruits of a peaceful era without us...

Yeah sorry that was corny as hell, no way are the characters are gonna talk like this in cannon but oh well it's called a fanfiction for a reason.

A more cheerful funfact.
Flour of Volition and Sugar of happiness knows Salt and Fount has a crush on each other so they some times set up fake meetings to set those two up on a blind date, Fount knows this but doesn't say anything.
Meanwhile Herald of Change is very oblivious to it all, he does not know what's up with those two hehe.

Another funfact in the au, Black Sapphire was a simple student of Fount before corruption, he actually found Candy Apple as a baby shortly before Fount got corrupted and when she grew up, Shadow Milk tell silly stories, making her believe she was born from biting a apple lol.

Black Sapphire secretly dated SilverBell before the beast got corrupted.

Shadow Milk is a heavy Purelily shipper that he secretly tried setting them up for romantic scenes without them knowing it was him, he enjoys watching them squirm embarrassingly XD

In this au Eternal Sugar isn't in love with Holly Berry, ITS HER SOUL JAM THATS IN LOVE
Yeah you read that right.
Her soul jam looked at its other half and was all like

Light.o.s: what's up gorgeous~?
Light.o.p: I'm literally half of YOU.
Light.o.s: MARRY ME.

And as a part of how this au works, the soul jams masters acted accordingly to how their souljams feel and behaves.

Oh yeah did I fail to mention
THEIR SOULJAMS HAVE A MIND OF ITS OWN?

I'm pretty sure it's canon and all but I'm gonna butcher that like a professional butcher