"Granny, Uncle Qingyang, Uncle Hu, the spirit form of the Mountain Lord hasn't fully taken shape yet, so it's not suitable to move into the new temple."
Chen Shi activated the small temple, showing the Mountain Lord's state to everyone. Honestly, he was a bit reluctant to give up the Mountain Lord. He didn't have a Divine Fetus, so the Mountain Lord was like his Divine Fetus. Activating the Divine Fetus had great benefits.
In battle, he could activate the Yellow Tiger, and even someone as skilled as Mr. Zeng, who was at the Nascent Soul Stage, found it hard to withstand a blow. If he activated the Mountain Lord, its power might be even stronger!
And during cultivation, the benefits were even greater. Chen Shi could sense that when he activated the Three Lights True Qi Technique, his True Qi became purer through the Yellow Tiger, and his cultivation speed greatly increased.
As Scholar Zhu mentioned, a Divine Fetus is like a cultivator's Primordial Spirit, allowing them to experience the benefits of the Primordial Spirit at a lower stage, aiding their cultivation and doubling the results with half the effort. In battle, it's like having a Primordial Spirit at a lower stage, greatly increasing strength.