The Astral Path is the way a Sleeper walks in order to reach the Realms Supernal during their Awakening. It leads through the Astral Realms, across the Abyss into the realm of its watchtower. When a mage later reaccesses the Astral Realms, he walks across his own Astral Path, but the way back to the higher realities is blocked again. The Astral Path is a relative safe way of traveling through the inner realms as it provides a good landscape marking for orientation.