```
But after injecting Spiritual Power, this Formation showed no response at all.
In the Divine Sense vision of Mo Hua, this Formation possessed only a shape but lacked spirit and the flowing trajectories of Formation power.
"What's still missing..."
But what could be missing?
Demonic power?
Where would he obtain demonic power?
Surely he couldn't cease being a "human" and study the Demonic Arts of the Demon Gate, cultivating through bloodshed like the Monster Beasts, feeding on Cultivators to nurture demonic power...
Mo Hua shook his head.
This Formation was temporarily useless...
But soon after, Mo Hua grew curious again.
He remembered that Bald Eagle, who hadn't practiced Demon Techniques either and whose Spiritual Power was normal. Why could he draw such an eerie Four Symbols Formation?
Or fundamentally speaking, what was the Four Symbols Formation actually used for?
Mo Hua stroked his chin, pondering carefully...