"What do you learn?" Tie Shan tossed the Spirit-level Essence Iron aside as though it was a piece of useless garbage and turned to look at the students.
The students glanced at each other and remained silent. Honestly, they didn't even know what Tie Shan did earlier. They could only see him hammer on the Essence Iron, and that was it.
Fei Mao was hesitating whether to speak up. He feared that his answer might be a joke in others' eyes.
Yun Lintian naturally saw this. He encouraged him. "Go for it. There's no right or wrong in learning."
Yun Lintian's words undoubtedly boosted Fei Mao's confidence. He immediately raised his hand and said. "The essence of Teacher's technique is not lies in your body control but energy control."
Tie Shan took a deep look at Fei Mao and smiled. "What's your name?"
Fei Mao answered nervously. "Teacher Tie, my name is Fei Mao."
"Pfft." Some of the students immediately burst into laugher hearing this, causing Fei Mao's face to flush red in embarrassment.
Tie Shan stroked his beard in a good mood and said. "Are you perhaps a descendant of a forge master?"
Fei Mao hurriedly replied. "Yes, Teacher. My family is always engaging in a forging business for several generations."
Tie Shan laughed slightly. "No wonder you have such a good insight." He turned to other students and explained. "What Student Fei said is correct. The reason why I could hammer it so steady and evenly wasn't because I could control my body well, but rather profound energy. As we all know, our vitality is declining every second. No matter how good your body control is, it will eventually decline one day when you are getting old."
"However, the profound energy control is different. Even on your last breath, the profound energy won't dissipate. Hence, as long as you can control it well, your forging technique will never decline for the rest of your life. Do you understand?"
All the students were immediately enlightened. They had been taught to focus on controlling their bodies well so that they could control their strength in every hit they made. As for the profound energy control, they believed it was used to enhance their power, not to control the hammering form.
However, Tie Shan was the opposite. He didn't rely on body control but instead used profound energy to control his strength. Even if he hit with all of his body strength, the force that descended on the target would always be limited by his profound energy. This was the reason he could hammer it so steadily and evenly.
Tie Shan looked at the students and added. "Of course, you still have to practice your body control. Good body control will help you when you are out of profound energy. For example, if you want to refine a piece of Floating Metal Essence, you have to hammer it at least ninety-nine thousand times, and you can't stop it midway. What would happen when you are out of your profound energy then?"
Tie Shan paused for a while, letting the students follow his explanation before continuing. "Certainly, you can take some energy pills to replenish your profound energy, but have you considered the amount of profound energy you needed in one hit? It is almost impossible for you to keep taking the pills during the forging process."
The students slowly nodded their heads in an understanding manner.
Meanwhile, Yun Lintian touched his chin and pondered. His Profound Vein could contain profound energy at least ten times larger than an average practitioner. Would it mean he was highly suitable to be a forge master?
Yun Lintian, of course, was interested in every profound art. He wanted to be an all-rounder, like those protagonists in the novel. It was just that he didn't have spare time to spend on it. Since the day he left the Heavenly Fortune Nation, he had been on the run and rushed to do things. There were around six months left before the Frozen Moon Mythical Realm opened. Perhaps he could use this chance to learn something new.
"Alright. Today, I will teach everyone a basic of energy control. Everyone spread out and choose any furnace in this room." Tie Shan said, and the students were immediately choosing their furnace.
Yun Lintian and Fei Mao had also joined in. They chose the furnaces nearby and listened to Tie Shan's teaching attentively.
Unknowingly, five hours had already passed by. Yun Lintian and Fei Mao were sweating profusely while constantly hammering on a piece of Essence Iron in front of them. The room was filled with clanging sounds. No one was talking as everyone focused on their works.
Tie Shan looked at Fei Mao and nodded his head in satisfaction. He gave Fei Mao a high evaluation as a good seedling worth cultivating. When Tie Shan shifted his gaze onto Yun Lintian nearby, his eyes widened slightly in surprise because Yun Lintian's profound energy control was too good. If it wasn't because Tie Shan could see some flaws in Yun Lintian's movement, he would definitely think Yun Lintian was a veteran forge master.
"This student, are you also a descendant of a forge master?" Tie Shan approached Yun Lintian and asked.
Yun Lintian stopped his movement and put the hammer down before replying. "No, I'm not."
Tie Shan's brows raised slightly. "Your energy control is superb. May I know how did you do it?"
Yun Lintian was taken aback for a moment. He didn't expect Tie Shan would rate him so highly like this. He replied. "Perhaps it is because I am a formation master."
"You are a formation master?" Tie Shan immediately understood. "You are right. The art of rune inscription requires high-level energy control. It can be said the foundation between it and the forging art is the same."
Looking at Yun Lintian again, Tie Shan couldn't help asking. "Why are you joining my class instead of taking the formation class?"
Yun Lintian pointed at Fei Mao and said. "He dragged me here."
Tie Shan was rendered speechless.