Ning Beichen took out the bronze ancient sword, but did not hold it in his hand. Instead, he placed it on the ground and connected it with his spiritual power.
In the past, Ning Beichen had tried to control the bronze ancient sword, but at most, he could only make it hover. It was possible to kill, but not beyond ten meters, making it somewhat useless.
So, he decided to try again to see if his current strength could drive the bronze ancient sword to do more.
Soon, Ning Beichen's spiritual power connected with the bronze ancient sword, and he used his mental power to make it hover.
The so-called mental power was essentially thought. Thought is power, and action is thought. It sounds easy but is difficult to do.
Fortunately, Ning Beichen had experience. When he willed the bronze ancient sword to float, he saw it actually rise to eye level with him.
But this was only the first step. Ning Beichen had already achieved this before, so there was nothing to be happy about.
"Spin around."
Ning Beichen willed the bronze ancient sword to spin once in front of him.
Indeed, the bronze ancient sword spun almost synchronously in front of him, with almost no delay, in sync with Ning Beichen's thoughts.
This time, Ning Beichen's face showed a satisfied expression. This was something he couldn't do before. Although he could make the bronze ancient sword float and even attack within ten meters, there was a delay of a few seconds, and the coordination was poor, making it a useless ability.
But now, it was different. As long as he thought it, the bronze ancient sword would immediately do what he wanted.
However, being in sync with him was just the simplest first step.
Following Ning Beichen's thoughts, the bronze ancient sword flew in the air. This time, Ning Beichen easily achieved it synchronously, making him quite happy.
At this moment, Ning Beichen's gaze fell on a large rock about fifteen meters away.
He willed it, and the bronze ancient sword pierced through the middle of the large rock.
The bronze ancient sword was almost synchronously in line with his thoughts, with no delay. It instantly passed through the large rock and emerged on the other side.
However, Ning Beichen could only perform horizontal and vertical movements. Using visualization to control the bronze ancient sword to perform the Songshan Sword Art remotely was fundamentally impossible in principle.
This was because the Songshan Sword Art required a lot of internal energy. Simply transmitting it remotely through spiritual power to the bronze ancient sword was impossible or very difficult, or required a higher cultivation level.
But to achieve sword flight, it would require continuously supplying internal energy to the bronze ancient sword as a sustained power source, in order to realize Liu Yilin's concept of sword flight.
If Ning Beichen could succeed, not only would sword flight be possible, but he could also use his mental power to control the bronze ancient sword to use the Songshan Sword Art on enemies from a thousand miles away.
If it really happened, Ning Beichen might be able to boast, "I am invincible, you may do as you please."
The bronze ancient sword, like other things, was just a carrier, equivalent to a car.
But a car needs energy to run, whether it's fuel or electricity. And fuel and electricity are equivalent to a cultivator's power.
What Ning Beichen needed to solve first was how to stably transmit his power to the bronze ancient sword remotely.
Therefore, Liu Yilin proposed an idea to Ning Beichen: borrowing the method of signal transmission from their world, construct a permanent signal receiver on the bronze ancient sword.
If successful, as long as Ning Beichen and the bronze ancient sword were within a specific range, Ning Beichen could transmit his internal energy to the bronze ancient sword.
This way, Ning Beichen could remotely control the bronze ancient sword, making it move according to his will.
However, it was easier said than done. How to create a permanent receiver on the bronze ancient sword was a difficult problem.
If it were that easy, those who had transcended the mundane would be flying swords everywhere.
Ning Beichen tried countless times without success, as there were no precedents to learn from, and he had to explore on his own.
Just as Ning Beichen was at a loss, a sentence from Haitang made his eyes light up.
"I wonder if a formation can be used to build a receiver?"
"Yes, why not use a formation!"
Thinking of this, Ning Beichen's mind suddenly opened up.
Formations might be difficult for others, but Ning Beichen had a special pair of eyes. He could see formations clearly, so constructing one was not too difficult for him.
Soon, the initial network of a formation appeared in Ning Beichen's mind. After careful modifications, the formation was finally complete.
Next, Ning Beichen began to meticulously craft the formation. It was a complex process, and even Ning Beichen spent more than an hour to engrave the formation onto the sword.
After finishing, it was time to witness a miracle.
Ning Beichen first connected his spiritual power to the formation on the bronze ancient sword, then began to transmit his power, storing it within the formation.
After completing these steps, the main event began.
If successful, Ning Beichen would create something unprecedented.
"Please, it must succeed!"
Ning Beichen himself was very nervous. Whether it succeeded or not depended on this attempt, as he had to save Yang Qianrou and had no time to waste.
If he failed, he would have to forcibly break into Xu Fengshan to rescue her.
As Ning Beichen's power was channeled into the formation, he saw the formation, like the stars in the sky, begin to light up one by one, then connect with each other, resembling a complex circuit board.
The most crucial part was that only Ning Beichen could see all of this.
For others, such as Liu Yilin and Haitang, they saw nothing, no stars, no lights, no circuit boards.
However, they could vaguely sense that the bronze ancient sword was undergoing some peculiar changes.
Time ticked by, and Ning Beichen's complexion grew increasingly grim. He had underestimated the formation he had set up. The formation was now draining him like a human husk, and he couldn't stop it.
"Ning Beichen, are you... are you alright? Your complexion is very bad," Liu Yilin asked with concern.
"I'm fine," Ning Beichen managed to utter the three words with difficulty.
Fortunately, the situation of being drained like a husk didn't happen. When Ning Beichen's power was only one-tenth remaining, the formation finally became saturated and stopped absorbing his power.