The veil was the barrier that The Fates had made for the sole purpose of keeping the Supernatural safe after the revolution of the humans. They guessed that they were surely going to cause problems later and as such, the veil was made.
They had been right.
The humans were a menace, trying so hard to take away everything from the Supernatural. There was no precise desire they possessed, probably, they were only doing this for revenge.
Alvitir paced round the room, his hand on his cleanly shaved jawline as he thought of what to do next to protect the Supernatural.
Thaymor and The Pinnacle would not even bother themselves about protection because that was the job of the werewolves. They were the most powerful creatures, and that was why the Luna Cavalry consisted mainly of them.