Fymir, Knight of the [REDACTED]
She is not a god, but a higher being.
She was much stronger in her younger years, appearing to humans and being able to interact with their world. But as supernatural forces have become more and more prolific, that energy has spread, and thus drained her of her power. It is through defeating evil that she is able to regain power, and together they can bring greater balance to the world.
In the waking world, she is identified by feeling, often a gentle reassuring touch, and her voice, which few can hear. You may catch glimpses of a large figure in her peripherals, but cannot focus on it. In dreams, Fymir presents her true self, but one is never able to remember her fully.