After being expelled from the sect, I became the villain mentor

Yu Nian's three disciples discovered that their master spent every day in the library, tinkering with something.

It was not until half a month later that she gathered her three apprentices together.

"Disciple greets Master." Ye Tang bowed, his well-behaved appearance making people want to hug him and kiss him.

Yang Yi and Ling Cang also bowed and greeted him.

"Let's skip all the red tape in the future."

"Yes."

Yu Nian pointed to the stool beside him, motioning for them to sit down, then looked at Yang Yi, "Have you practiced in the past half month?"

"Disciple has followed Master's instructions and has not practiced." Yang Yi answered obediently.

Yu Nian nodded, very satisfied and continued, "I didn't let you practice because the current practice method for the five spiritual roots is too inefficient. Can you read?"

Yang Yi said modestly, "My father was a teacher in the village. I learned a little bit from what I saw and heard."

That's good, it can save you a lot of trouble.

"Master, why did you call us here today? Is there something wrong?" Ye Tang was very curious about this and stared at Yu Nian with wide eyes.

"I called you here today to talk to you about cultivation."

"Practice?"

Upon hearing this, the two little guys who had never practiced became excited, but Ling Cang's eyes flashed with disdain.

He had seen countless spiritual techniques and skills, so what could Yu Nian, a Jindan cultivator, say?

However, Ling Cang is destined to be really fragrant today.

Although Yu Nian didn't know much about the world of cultivation, she had extensive educational experience and her cognition was more diverse than that of the native people in the world of cultivation.

“Before today’s class, let me tell you a little story.

Once upon a time there was a grass seed. It was buried in the ground. It took a long time for it to break through the soil. Beside it was a flower. The flower said, "Hello, little friend, how is the sunshine outside?"

The grass looked around for a long time, but saw nothing. It couldn't help asking, "What is the sun?"

After hearing this, Ling Cang's face darkened. What kind of story was this? Did Yu Nian come here to make fun of them?

It was Yang Yi who really began to think about what sunlight was.

Ye Tang listened to it as if it were a story, propping up his chin and saying, "Master, this story isn't good at all. Can you tell me another one?"

Yu Nian's forehead was full of black lines, and then his head was hit by Ye Tang.

Ye Tang covered his forehead, feeling a burst of pain, "Master, it hurts!"

"It's good that you still feel the pain."

If you feel the pain, it means you are not stupid and there is still hope.

Yu Nian straightened his posture, his expression solemn, and continued, "I just told you a little story. I'm not trying to make you realize some great truth. I just wanted you to understand that sunlight is essential for life to a little grass, yet it doesn't even know what sunlight is. And spiritual power is just one of the conditions for cultivation for a cultivator. Do you all truly understand what spiritual power is?"

"Spiritual power is the essence of heaven and earth bestowed by the way of heaven." Ling Cang replied.

This is the accepted answer.

"You're talking about the conclusion about spiritual power. What I want to ask is what the essence of spiritual power is."

Essence? Isn't essence the essence of heaven and earth? What else could it be?

This question made Ling Cang, who had once been to the top of this world, a little confused.

When he faced an ordinary cultivator like Yu Nian, he always had a sense of superiority in his heart, but now he was frozen.

Looking at the three people's confused and dazed expressions, Yu Nian patiently explained, "The essence of spiritual power is a kind of energy.

I think you are still unfamiliar with the word energy. It is just a concept I set for spiritual power.

Aura itself does not have any special properties, and has the meaning of chaos as people say, but after being contaminated by media of other attributes, it will be transformed into various spiritual powers.

The spiritual roots of various attributes that we cultivators possess are equivalent to the keys that unlock the use of spiritual power of that attribute. The more spiritual roots we have, the more keys we possess, and the more spiritual power we can use. Therefore, cultivators with more spiritual roots will be more powerful. Those with four or five spiritual roots should have better qualifications than us."

Although the three of them could not understand everything Yu Nian said, they could understand part of it.

Are useless people with four or five spiritual roots better qualified than geniuses with one or two spiritual roots?

Yu Nian's words completely overturned the traditional cognition of the cultivation world. They were simply nonsense and outrageous talk that was completely unconvincing.

“I know that for tens of thousands of years in the world of cultivation, cultivators with a single spiritual root have cultivated much faster than those with multiple spiritual roots, and some have even reached the Golden Core stage without any bottlenecks. This fact seems to have negated my previous statement.

But I have good reasons to explain.

The laws of nature are constant and fair. Practitioners with multiple spiritual roots can use energy of more attributes, but they will also lose something accordingly.

For example, a cultivator with a single spiritual root only needs to focus on cultivating one spiritual power, while they need to cultivate multiple, which increases the workload several times and naturally slows down their cultivation speed. Furthermore, cultivators with multiple spiritual roots also need to harmonize their spiritual powers and maintain a balance, otherwise they risk going astray and becoming possessed.

Human lifespan is limited, and many cultivators with strong spiritual roots are unable to break through to a new realm before their lifespan expires.

As a result, single-spiritual-root cultivators, who have almost no concerns about their lifespan, have become recognized as having good qualifications in the world of cultivation."

After saying that, Yu Nian looked at Yang Yi and said, "So, Yang Yi, you don't need to underestimate yourself. As a cultivator with five spiritual roots, your future has unlimited possibilities."

Yang Yi is the least talented among Yu Nian's three disciples. Almost no sect would accept a disciple with five spiritual roots. The pressure he is under is beyond words.

Yu Nian knew that he had not been allowed to practice during this period of time. Although he seemed very calm and casual, he was still anxious in his heart.

So, please drink this bowl of chicken soup from Master!

Seeing his three disciples completely attracted by these novel ideas and listening with great interest, Yu Nian felt a sense of pride in his heart.

Her hard work for the past half month was worth it.

"Okay, enough talk, let's get back to the point. Spiritual energy itself has no attributes. It only becomes spiritual power with attributes after it comes into contact with a medium. We can reverse the process and strip the attributes from the spiritual power, turning it back into attributeless spiritual energy. Then, we can mix it with other media to convert its attributes."

As she spoke, Yu Nian stretched out her hand, and under the horrified gazes of the three people, a ball of fire emerged from the palm of her hand.

Ling Cang stared at Yu Nian's palm, trying to find any trace of the talisman.

However, there was nothing.

He now wanted to just leave, wash up and lie down on the bed for the night, as if everything today was just a dream. After all, even immortals could not change the fact that they could not use spells across attributes.

But the scorching air waves and the dancing flames that rushed into his face shattered his three views.

Yu Nian, who was like a transparent man in his previous life, achieved something that even immortals had never done!