The Eighth Order is undoubtedly a crucial realm.
After stepping into the Eighth Order, one can influence the flow of Heavenly Fate in small areas, and within the Great Realm, one can affect the cultivation speed of each Taoist orthodoxy.
Creatures of this level are now entirely in the Upper Realm, and in the Lower Realm, they are simply nonexistent. The Upper and Lower Realms are disconnected, and except for people from the Three Great Clans, few cultivators can come and go freely.
Nowadays, in the Lower Realm, apart from the three Fang Families, some long-standing powerful Taoist orthodoxy mostly had elder ancestors who entered the Upper Realm.
These people, after entering the Upper Realm, are essentially never heard from again, and many cultivation skills have been lost.
Some of these orthodoxies possess the Eighth Order's legacy, but most are incomplete. None have anything like the Mystic Sun True Understanding, which directly reaches the Perfection of the Eighth Order.