Not just the Luofu Heart Lamp.
Within the Dantian, the Twelve Venerable Dutian Demon Gods surrounded the Golden Core. Some breathed out while others formed Seal Techniques, refining the central Golden Core together with the Luofu Heart Lamp to temper mana.
Mana circulated.
The Yellow Robe True Skill was also tempering the physical body, which was unknowingly being enhanced. Although at the initial ascension of the Primordial Spirit Stage, even Exotic Beasts and Divine Beasts of the same grade found it difficult to compare with Lu Qingfeng's formidable physical body.
The Five Thunder Heart Sutra contained the true intent of resounding thunder.
Mana and physical body, even a thunder entering the Divine Soul, nurturing a hint of golden light, enabled Lu Qingfeng to harbor a trace of Pure Yang true intent in his Divine Soul, even though he had not yet achieved the Fourth Realm of Primordial Spirit.
