After Qian Duoduo had rested, Liu Boli waved his hand and set up a black and white Condensing Soul Array on the ground.

"Watch carefully."

Qian Duoduo took out a jade box filled with soul liquid from the Golden Toad and placed it by his hand.

His Spiritual Awareness entered the Condensing Soul Array to observe how Liu Boli would condense the soul.

Liu Boli used his Spiritual Awareness to take a mass of soul liquid from the jade box and dripped it into the Condensing Soul Array.

As the soul liquid dropped into the Condensing Soul Array, it automatically flowed to the right, dividing into two black and white parts, flowing down from the two fish eyes, and splitting into ten parts below.

"The white parts are the so-called Three Ethereal Souls and Seven Corporeal Spirits: 'Fetal Light,' 'Refreshing Spirit,' and 'Hidden Essence,' also known as 'Heavenly Soul,' 'Human Soul,' and 'Earthly Soul,' representing Yang."

"The black parts are the so-called Seven Corporeal Spirits: 'Corpse Dog,' 'Feces,' 'Sparrow Yang,' 'Thief Devourer,' 'Non-Poison,' 'Filth Remover,' and 'Stinky Lung,' also known as 'Joy,' 'Anger,' 'Sorrow,' 'Fear,' 'Love,' 'Hate,' and 'Desire,' representing Yin..."

Liu Boli pointed to the ten parts into which the soul liquid had divided, explaining each one.

The Three Ethereal Souls and Seven Corporeal Spirits, each part had its own function.

Just as Liu Boli said, they were like materials with different attributes, varying in quantity, strength, or weakness, allowing for the refining of countless types of souls.

"However, the soul core of the Entering Saint Key is different from the spirit of a Puppet."

"The spirit of a Puppet is related to the Puppet's attributes, focusing on compatibility."

"In my opinion, the soul core of the Entering Saint Key emphasizes purity and balance."

"Bu Huan, channel your Spiritual Awareness into the soul liquid. You will find that the soul liquid, when decomposed into ten parts, is not that clear. Especially this kind of soul liquid transformed from Sha Soul, it must carry a deep Evil Qi."

Qian Duoduo carefully observed the decomposed soul liquid with his Spiritual Awareness and indeed found extremely subtle black Qi within it, present in both the soul and the corporeal spirits.

"How should this material, the soul, be purified?"

Qian Duoduo couldn't help but feel a little worried.

"Generally, there are two methods: one is 'transformation,' using a righteous Mind-Cultivation Technique to resolve the resentment in the soul liquid."

"The other is 'discharge,' using an evil Mind-Cultivation Technique to induce and concentrate the resentment, then removing the impure parts."

Liu Boli instructed, "You should circulate the Golden Life Devouring Dragon Art."

Qian Duoduo summoned the Purple-Eyed Golden Winged Bird and moved it close to the Condensing Soul Array.

Those subtle black Qi scattered away from the Golden Light of the Purple-Eyed Golden Winged Bird.

After a while, Liu Boli moved his finger, splitting the soul liquid into two, and took out the part that had moved away from the Golden Light of the Purple-Eyed Golden Winged Bird.

"Take a look."

Qian Duoduo merged his Spiritual Awareness into it and saw that the resentment within was several times more concentrated than before.

The part that remained in the Condensing Soul Array, however, was much purer.

"That was 'transformation' just now. Now, watch again."

Liu Boli formed a hand seal with his left hand, casting a vicious Cultivation Technique, and a mass of black Qi appeared out of thin air.

That black Qi was eerie and terrifying, seemingly formed from Evil Qi.

As soon as the black Qi appeared, the resentment in the soul liquid became active, gathering towards the direction of the black Qi.

Qian Duoduo nodded.

"I understand. Later, if it's cut in half again, this soul liquid will be much purer."

"That's right." Liu Boli finished his explanation, then began to wave his fingers, constantly adding and subtracting soul liquid in the Condensing Soul Array, purifying it repeatedly.

"Pay attention, I am about to condense the soul."

As soon as Liu Boli's voice fell, the Condensing Soul Array began to rotate to the left, and the Three Ethereal Souls and Seven Corporeal Spirits gushed out from the fish eyes.

His fingers manipulated, mixing these ten soul materials—Fetal Light, Refreshing Spirit, Hidden Essence, Corpse Dog, Feces, Sparrow Yang, Thief Devourer, Non-Poison, Filth Remover, and Stinky Lung—either as primary or secondary, ruler or subject, upper or lower.

During the mixing, they consistently rotated left at a fixed frequency.

Seeing all the soul liquid gathered into the vortex, Liu Boli softly shouted, "The Dao gives birth to one, one gives birth to two, two gives birth to three, and three gives birth to all things!"

After shouting, he transformed his finger into a sword, cut off a section of his own Spiritual Awareness, and cast it into the center of the soul vortex, then moved the soul vortex into the cauldron, close to the Entering Saint Key.