Lu Changsheng circulated the "Ziwei Celestial Flame True Art," and a mass of Ziwei Celestial Flame appeared beneath the Five Elements Immortal Cauldron, causing the cauldron to emit multicolored light.
Lu Changsheng placed the Origin Dao Fruit into it, and the spiritual power of the Origin Dao Fruit was gradually extracted.
Lu Changsheng's forehead was covered in beads of sweat, and his Daoist Robe was soaked through with sweat.
The "Ziwei Celestial Flame True Art," a supreme teaching from the Tai Hua Holy Land, consumed a tremendous amount of True Qi, and the Five Elements Immortal Cauldron, being an Emperor-class alchemical artifact, required an equally vast amount of True Qi.
Lu Changsheng employed the Five Elements Immortal Cauldron and the Ziwei Celestial Flame, refining for a whole day, yet only about one-thousandth of the Origin Dao Fruit was refined.
Fortunately, a day's time meant little to a Quasi-Emperor with an extended lifespan.