Quote from : The Floating Island Book

So now you know that, as dark as the depths of the sea may be, as dark as the night gets without a moon, it is not really true darkness. It's just waiting for light to return. There are places that are truly dark in this world, Ven, but this place here, this open stretch of sea where you are floating, is not one of them. It's not really dark here - it's just night. If you hang on and stay awake, in a short while the edges of the sky will start to turn gray, then pink, and the sun will rise, and there will be blue above and all around you again.