C314
Ye Hao's current realm was in the Late Period of Tao Soul, so if the Barrier Breaking Pill really had the godly effect Han Yitian described, it wouldn't be too difficult for him to break through to the Dao Soul Great Perfection.
In terms of danger, refining the Primal Chaos Immortal Fire and even the Extreme Golden Body Stage's Essence Refinement Realm were much safer than this