The whiteness radiated by Gratia's figure resembled a domain, but Noah could sense the different depths that her power reached. She wasn't simply modifying the matter to turn it into her personal world. That energy was the world that her existence created.
The only difference in her case was that her existence belonged to Heaven and Earth, so her world mixed perfectly with the environment. She was part of the rulers' whiteness. The edges of her personal space opened in front of the natural light radiated by the sky.
Gratia wasn't joking when she claimed to be an avatar of the sky. Her whiteness wasn't a simple influence. It absorbed the matter that Noah had tainted and brought it back inside Heaven and Earth's system. It almost looked like a cleansing process, but it was different from Daniel's purification.