The Mingxu Star Realm is a First Level Star Realm, and once one's life level reaches level 20, they can no longer pass through the Star Realm's entrance and exit.
Based on Li Yuan's third time experiencing Origin Power entering his body,
"Once I raise my Spiritual Awakening Level to 40% and initiate the fourth instance of Origin Power entering my body, I fear my life level will reach 21 or even higher," Li Yuan thought to himself, "Then, I can only spend my whole life in the Mingxu Star Realm."
Other First Rank Martial Artists, once they reach 19.9, may be due to their techniques or insufficient spiritual power, find it difficult to break through to level 20.
But Li Yuan? His spiritual power and techniques were more than sufficient a long time ago, and once his life level reaches the First Order Limit, he would rapidly break through.
Spend a whole lifetime in the Mingxu Star Realm? That was not what Li Yuan wished for.