The Cloud Barrier is a thick shield of clouds erected by Hylia during the Era of the Goddess Hylia, preventing passage between Skyloft and the Surface. Hylia created this barrier after sending Skyloft into the sky in an effort to protect the Hylians and the Triforce from the demons which had overrun the Surface.
At the beginning of Skyward Sword, Ghirahim manages to penetrate the barrier with his magic, summoning a tornado which knocks Zelda off her Loftwing and pulls her down to the Surface. As Link obtains the Emerald, Ruby, and Amber Tablets, he is able to travel freely through portals between Skyloft and Faron Province, Eldin Province, and Lanayru Province, respectively.
After the events of Skyward Sword, the Cloud Barrier dissipates, allowing the Hylians to return to the now safe surface.
- ↑ "The thick, vast expanse of clouds placed between the sky and the land, sealing them away from each other. No one is allowed to pass from one place to the other.", Hyrule Historia
- ↑ "Hylia gathered the humans who had survived, along with the Triforce, onto a plot of land and sent it into the sky. She positioned a heavy barrier of clouds between the island in the sky and the land below to protect the humans and the Triforce.", Hyrule Historia