The core of advancing to a Level 3 Mage is to open the Gate of Rules and let Spiritual Power produce a profound resonance with the Rules.
And the Plane Will—that hazy yet colossal collective consciousness slumbering in the depths of the Plane—is itself the source of all Rules within a Plane.
Advancing at the World's Navel means that at the moment the Mage pushes open the Gate of Rules, he is closer to the Plane Will than at any other place.
This closeness is not a matter of physical distance, but a kind of proximity at the level of perception.
Like standing directly beneath the dome of a vast cathedral and whispering, the echo there is clearer and more focused than anywhere else.
The Plane Will will not actively assist a Mage's advancement, but its mere existence is like a lighthouse that never goes out, providing all Mages who attempt to perceive Rule Power with the clearest and most stable reference coordinate.
