Via Aestrales is the official term for the webway of portals that connect the Citadel Seal's many spaces into a complex system of magic transportation and infrastructure.
“A hall is what you call a spelled piece of space-magic that's open for the public. A tower hall...Hall
“A realm is what you call the largest manner of space-magic, and can usually be characterized by...Realm
“A chamber is what you call a spelled piece of space-magic that's meant for personal residence...Chamber
“A portal key is a magical item that makes any portal-door lead to one particular chamber, hall...Portal key