The Sea of Light is actually pretty peaceful. And it is one of the safest seas out of the ten Seas.
When it is night, it glows with light.
The only benefit that is seems to had is to buff the people that is inside or around the Sea of Light.
But there is also some restriction in this sea.
The route going to the Sea of Light is dangerous.
And there is restriction of no flying in that sea.
There is rules of the law that is embedded in the area all around that sea causing anyone that enters it to not be able to fly.
Other than that, the other ability one would have is not restrained at all.
Only the ability to use any laws that enable flying.
Even flying devices made out of electronic would fail the moment it enters close to the Sea of Light.
At first, Azief thought it has something to do with gravity.