He Song only knew that
his Primordial Spirit was gradually becoming insubstantial as time passed.
And when that insubstantial transformation was fully complete, he would take a Nine Transformations Void Returning Pill and begin gradually merging his insubstantial Primordial Spirit into his physical body.
However, the process of making the Primordial Spirit insubstantial took far too long.
Therefore, during this time, He Song could only repeatedly circulate the Grand Void Spirit Refining Technique, continuously absorbing the power of the Grand Void to make his Primordial Spirit insubstantial.
Fortunately, this situation had long since been recorded by the predecessors of the Nine Yang Sect.
At this moment, the insights regarding this breakthrough also surfaced in He Song's mind.
According to those records of breakthrough insights,
the complete insubstantial transformation of the Primordial Spirit would likely take more than a hundred years.
Thus, while continuously circulating the Grand Void Spirit Refining Technique,
He Song also constantly observed the changes in his own Primordial Spirit.
This allowed him to calculate exactly how much time had passed outside.
And as more than a hundred years passed,
when He Song sensed that the silver patterns appearing across his Primordial Spirit had reached their limit, and his entire Primordial Spirit seemed to be shrouded in silver light,
his heart stirred.
This situation proved that the insubstantial transformation of He Song's Primordial Spirit had reached its final stage.
Next, he needed to take a Nine Transformations Void Returning Pill and begin gradually merging this insubstantial Primordial Spirit with his physical body.
Realizing this,
He Song did not hesitate in the slightest and swiftly swallowed the Nine Transformations Void Returning Pill he had prepared long ago.
Then, as the pill's medicinal power began to take effect,
He Song immediately sensed that his Primordial Spirit, which had long completed