The sea of Varian's soul was a mix of seven different colors, perhaps directly from his seven different paths.
The water in the sea—at least that's how it visually seemed—was a mix of multiple colors, expanding every second, pushing farther and farther into the void.
The 'spirit' sat in the depths of the sea.
The usually free spirit now had a golden shackle covering it from head to toe.
The contract.
It's not a normal grade contract. Even if peak rank 9s help, the contract would stand strong. In the worst case they manage to crack it, it'd damage Varian's spirit and had a great chance of killing him.
Since it's a direct attack on his spirit, his consciousness, his great physical regeneration would be of no use.
Of course, as an <Ignis>, Varian could recover from the damage. In the worst case, he could store a bit of his spirit, blow up the rest to break the shackles and start regeneration.