User blog comment:IamThorn/Academy Names/@comment-24994749-20141002044839/@comment-24994749-20141002060920

I was thinking Key and Unity to parallel how Beacon's and Haven's names are sued as nouns to reefer to the elements of people's survival.

So it's Beacons of hope in Vale, Havens from darkness in Mistral, Key to survival in Vacuo (since thy are the resourceful ones) and Unity in Atlas (cause they are the ones that are more about order).