As an archon, you are a being of great power who shapes the world. You exist in a world beyond it, one that is only partially connected, and so your influence is limited.
You have a unique symbol that is the essence of all that you are. That symbol may be marked on anything. The more precisely it is drawn, and the larger it is drawn, the more effective it is and the broader your influence extends from that symbol. In game terms, assume that anywhere your followers have been extensively bears your symbol. Not only can you enact miracles near you symbols, you can be aware of anything going on near any of your symbols, though you are only aware of one thing at any given point in time.