The "best" for the Astral Core Realm was unexplored territory to the Sealed Regions. Even to this day, Wei Wuyin had not come across a cultivator or rumor of a cultivator acquiring an Astral Idol. The peak of the Mortal Realms unequivocally represented the consolidation and gathering of the entirety of one's cultivation, from the first Mortal Realm—the Foundation Establishment Realm to the final Mortal Realm—the Astral Core Realm.