For Chen Mu, although he exists in the God Realm, merely transmitting some cultivation methods in the identity of a Divine Spirit doesn't face intense rejection from this Middle Realm. In the process, Chen Mu gradually tests the boundaries of this Middle Realm, and even if he sends a single thought to manifest a Divine Power Avatar to descend, it's still feasible.
As long as the power is restricted below the level of a Grandmaster.
Of course, Chen Mu could forcibly destroy this Middle Realm or even plunder the Interface Origin brewing within it, but that is not what he needs now; he seeks only the Inspiration of the Life Profound Mystery.
After bestowing another cultivation method, Chen Mu continues to observe the living beings of this world.
He sees the aged dwarven priest underground, first cultivating the method himself, and after a few days, teaching it to the young adults of the tribe. Over time, the cultivation method bestowed by Chen Mu starts to gradually spread.