there is a grey area

Trotting in, the darkness is carried on the back of one black horse.

All the faces of the world, float on black behind this steed of darkness.

On the opposite side, all the light is carried on the back of one white horse.

Eyes blue with the water of the Earth, and behind her, endless bows of lace. And the whiteness clearly is not confused about being all the colors.

And all reflections.

You stand in the middle. Look to both sides, who do you see? Do you need a mirror to tell you to yourself?