Next, he needed to swallow the seed of fire and then refine and assimilate it with his mana.
This was the most dangerous step in refining Heavenly Spiritual Fire!
Whether they were Energy Refining Cultivators, Foundation Establishment Cultivators, or Nascent Soul Immortals, the internal parts of the body were always the most fragile.
Especially the meridians and Dantian.
If something went wrong, at best, cultivation could be half-ruined; at worst, one could die!
Thus, refining Heavenly Spiritual Fire was very dangerous!
Most alchemists and artifact refiners in the world would choose to cultivate some sort of Innate True Fire technique and Divine Skills.
Only a very few dared to refine Heavenly Spiritual Fire!
Yet before refining, they would prepare various Heavenly and Earthly Treasures to minimize risks.
Or, being Nascent Soul Immortals, they would choose to refine Second Rank Heavenly Spiritual Fire and then gradually nurture it.