After Xuan Yuan mentioned its size, Wang Daoyuan immediately recalled how he had once modified the Five Elements Spirit Fire to make his spiritual power purer.
The Five Spirits Immortal Transformation Art he cultivated used the Five Elements Spirit Fire to condense Spiritual Power Seeds.
Later, to strengthen his Nascent Soul, he had used the Spiritual Power Seeds to create the five organs of his Nascent Soul.
The earliest Spiritual Power Seeds had been created by True Man of Five Elements, his master from another lifetime. As a Golden Core Cultivator, his understanding of laws had not been deep enough.
Though the Spiritual Power Seeds he created were ingenious, they had many shortcomings.
To improve the functions of the Spiritual Power Seeds, Wang Daoyuan had spent enormous effort modifying them.
The Spiritual Power Seeds had already become the five organs of his Primordial Spirit. To modify them, he first had to separate them from his Primordial Spirit.
After restoring them to spirit fire, he would condense new Spiritual Power Seeds, then reshape them into the five organs of his Primordial Spirit.
This process was extremely dangerous. If the spirit fire became unstable, it could cause his Primordial Spirit to collapse.
To prevent problems with the spirit fire, Wang Daoyuan had asked Xuan Yuan about secret techniques for suppressing spirit fire.
At that time, Xuan Yuan had mentioned that controlling spirit fire with a wisp of soul could prevent it from acting abnormally.
Wang Daoyuan had instead used the Soul Nurturing Art of Clones to split off a wisp of Split Soul, turning all five kinds of Five Elements Spirit Fire into his clones, and had ultimately completed the modification of the Fire Seeds successfully.
After spirit fire became a clone, he could perceive it from every angle and control it.