A true immortal, even without taking action, would find it difficult to exist for a long time in the Five Domains and Four Seas.
That's why the Three Major God Mountains were established.
Only by residing in such special places and then entering deep slumber could one ensure the integrity of the immortal body.
As for the Master of God Mountain, although far surpassing true immortals, as long as he acted, even an unrivaled overlord would only be left with regret.
But to awaken them from their deep slumber—no one dares to rouse the Master of God Mountain, nor is there any need to.
Even the most powerful overlords possess a mere ten thousand years of lifespan.
Ten thousand years are but a brief moment in the eyes of an immortal; a mere nap and the so-called unrivaled overlords become dry bones in their tombs.
Because whenever an unrivaled overlord emerges, they could simply seal the mountain.