"Essence of the Spell?" Richard pondered for a moment and replied, "In my view, the essence of the spell should be an auxiliary to wizardry.

Firstly, spells are not essential for casting. Spells working in conjunction with internal energy are considered standard casting procedures, but a wizard who is skilled enough can control internal energy without chanting and still successfully cast, that is, a silent spell.

Correspondingly, if the control of internal energy is not proficient, using spells can be a significant help. According to some of my tests, there is an error in internal energy control. If the error is within five percent, using spells can greatly reduce the impact of this error.

So, in a sense, spells are like a crutch, helping novice wizards to lower the difficulty of casting, increasing its safety, and preventing minor details from causing spell backlash and accidents."

"It seems you have indeed researched." Abel listened with some appreciation and nodded, then changed his tone, "However, have you tested another scenario—that is, how would the results differ if the internal energy within your body is casting one spell while simultaneously chanting a completely different spell?"

This... Richard raised an eyebrow, starting to think... He had to admit, Abel’s suggestion was highly novel, igniting an impulse for immediate experimentation.

"Hah, it seems you haven’t tested it. Then you need not try; I can tell you directly: the result of casting would be a one hundred percent failure. No matter how correctly you manipulate internal energy, if you chant a completely wrong spell, it will certainly lead to spell failure." Abel commented, "From this perspective, do you have any thoughts?"

"Perhaps the essence of the spell is both an aid and a burden?" Richard speculated, speaking slowly, "When the spell is correct, it acts in a positive auxiliary manner, assisting in casting. A wrong spell, however, exerts a negative burden, affecting the process. If the spell is entirely wrong, the negative impact exceeds the internal energy control error by five percent, hence guaranteeing failure."

"It’s an explanation." Abel chuckled, "But in my theory, spells actually rank higher—not that spells belong to wizardry, but wizardry belongs to the spell. A correct spell can correctly release wizardry, but an incorrect spell will cause wizardry to fail, regardless of internal energy manipulation."

"Hmm?" Richard’s eyebrow shot up, showing some disagreement, "That can’t be right. According to your theory, just chanting the correct spell without the assistance of energy can successfully cast a spell? If so, what necessity is there for wizards? As far as I know, it seems no one can simply chant a spell and succeed without using energy. Just like you, who recited countless spells over seven days without any change."

Abel looked over, not angry, but spoke calmly, "The reason is simple. It is because the chanted spells were not correct, not analyzed spells. Once a correct spell is chanted, everything changes."

"What do you mean?"

"I’ll ask you: what is the spell for casting the simplest Fireball Technique?" Abel did not answer but rather asked a question.

"Coret... er... Fei’er..." Richard answered without hesitation.

Abel nodded, "You are not wrong, that is indeed the spell, but... this spell is not the true spell; rather, it is an abbreviation of the true spell.

I know you may not fully comprehend this, so let’s use an example—in the era before the collapse of the Ancient Wizard Civilization, in the distant 18th Plane, Taksna Plateau, White Water Research Institute, I had an old friend named Bor, who stood close to two meters with red hair and purple eyes.

Now, if someone suddenly appears in front of me with a completely different appearance and tells me they are Bor, would I mistake him for my old friend? Of course not, as there are far too many people with the same name in the world, let alone a common name like ’Bor.’

If I were to shout the name ’Bor’ in a gathering point of a thousand people, there would be at least three to five responses. But if I were to shout ’18th Plane, Taksna Plateau, White Water Research Institute Bor’? Either no one would respond, or those who did would definitely be my old friend.

Moreover, if someone were to tell me their name was Bor while resembling Bor exactly, excluding twins or copies, I would unhesitatingly recognize them as my old friend.

To explain clearly: in this example, ’18th Plane, Taksna Plateau, White Water Research Institute Bor’ as the full name is the true spell, and ’Bor’ as the abbreviated spell. Regarding Bor’s appearance, it equates to internal energy manipulation.

Internal energy manipulation plus an abbreviated spell can successfully cast wizardry, and doing so aims to pinpoint a unique identity—that is, the true spell’s effect. To be smarter, one should not rely on abbreviated spells and internal energy manipulation but instead use the true spell to directly achieve their objective."

Having listened to Abel, Richard furrowed his brow in thought for half a minute, then looked up at Abel and spoke, "I haven’t pinpointed a flaw in your theory yet. Logically speaking, your theory is correct, albeit a bit preposterous. The sole question remaining is: after saying so much, do you have any evidence to support it?"

"I certainly can prove it." Abel smiled, "You won’t believe I’ve used the whole Autai’s Brain, spent countless time working purely on delusions, right?"

With those words, Abel paused, rapidly reciting a long string of spells: "Coret... Evans... Nam... Reescode..."

"Far... Bler!"

As Abel uttered the final syllable, with a "poof," a faint red fireball roughly ten centimeters in diameter appeared in his palm.

During the process, Richard opened up his senses fully and indeed did not perceive any energy waves. It truly seemed Abel merely recited the spell and manifested a fireball.

The fireball lacked significant power, but to Richard, it was more impactful than witnessing a large-scale nuclear explosion, as he furrowed his brows and reconsidered Abel’s words.

By solely using the true spell, can wizardry be released? Then what is the existence of a true spell? Moreover, why do true and abbreviated spells exist? And...

Abel then proceeded to chant a second long spell.

"Coret... Evans... Tos... Kana..."

"Far... Polit!"

"Poof!"

The fireball in Abel’s hand began to expand within the field of view, its volume exponentially growing, transforming into a massive fireball of over ten meters in diameter after just a few breaths, its edge nearly touching the functioning "Autai’s Brain."