The white horse resembles the beauty of a dream that can quickly turn into a nightmare.
This design is based on the mythological creature Nökken.

Nökken is a mythological creature found in folk tales from Scandinavia. The story says it lives in dark ponds in the forest, where it lures people in the pond and drowns them. The story also says that nökken has the ability to turn into a white beautiful horse to lure people into the pond to drown them.

This is a Dreams and Nightmares submission.