The first Heavenly Tribulation is when ordinary beings become immortals, marking a qualitative leap in their life levels.
The second Heavenly Tribulation is for beings to break through to the Golden Immortal Realm, gaining the capital for eternal longevity.
The third Heavenly Tribulation is for beings to break through to the Daluo Golden Immortal Realm, consolidating all realms into oneself, achieving uniqueness.
The fourth Heavenly Tribulation is for breaking through from the Daluo Golden Immortal Realm to the Quasi-Saint Realm, requiring one to undergo the Heavenly Tribulation to continue cultivation.
As for cultivating from Quasi-Saint to Saint, there is no need for a Heavenly Tribulation.
The four major Heavenly Tribulations on the path of cultivation for beings involve a qualitative transformation of their origin's life level with each occurrence.
