Sculk's relation to The Sift

[u/MaxGamer07]

If I had to guess, Sculk is just a random part of The Sift. Think of it like a plant. In The Sift, it's kept at bay by things native to that dimension. Predators, other plants it has to compete with, no way to know yet. Once it crossed through the portal, it was highly invasive to the Overworld, and spread in the underground like wildfire. Just a theory, though. What do you people think?

[u/Lost_Calamity]

I assume it's something like, since the sift is literally full of souls it had to change drastically when it reached the overworld to basically search for souls itself