How do you imprison a mighty entity? Some say to shackle them up or bind them with a curse. But if the entity is too powerfull,
it'll break free eventually and everyone against it would be at risk. So, why not makeing it your friend?

One way is to yield and indulge it as much as possible. Why? Because if you're cheeky and the creature is foolish, you can feed it with some high calorie, super fattening dishes. No prison, no restrain is stronger, than your own body itself.

And poor Aurelion Sol fell for this mean trick. Just look at him! Eating without any second thought. Every bite anchors him down even more.
He'll not be moving around for a very long time. But at least he's enjoying his meals!