However, if your goal is to refine it further for literary cohesion or visual script-level clarity, I'll suggest only light polishing—preserving your intent while tightening rhythm and enhancing the emotional beats slightly.
Here's your refined version:
That night, the world seemed calm.
But within its stillness, something crept.
San Lie sat alone beside a narrow river.
His eyes were hollow, his hands trembling.
On the fourth day of attempting to "sit" like Heng Zhen,
his spirit felt slowly torn
not by force,
but by a void he could not comprehend.
He believed he could master Yuanqi
as one masters a blade.
But one truth had escaped him:
Yuanqi is not born of control.
It is born of total surrender—
to a balance that cannot be forced.
San Lie growled.
He seized a jagged stone and struck the earth,
as if lashing out at a world that refused to answer.
But what rose
was not the sound of stone meeting soil.
It was a hiss...
The air twisted.
The ground pulsed.
And from the soft fractures of the earth,
a dark mist began to rise—
not like smoke,
but like something ancient
stirring from sleep.
Chaosqi.
Not wild, as it usually was.
But… awakened.
In the Valley
Heng Zhen opened his eyes
before the first scream echoed.
"He touched it," he murmured.
Lu Wen, seated beneath an old pine, turned sharply.
"Who?"
"San Lie. But it wasn't Yuanqi he found."
Heng Zhen rose,
his body quivering slightly.
"He tried to fill the void with his own will.
But his will wasn't strong enough.
So Chaosqi entered."
Then—an explosion from the east.
Trees burned without fire.
The ground heaved, then cracked.
Strange voices filled the air—
not speech,
but the language of something never meant to speak.
The valley people fled.
Some collapsed.
Others sealed themselves inside the caves.
Lu Wen clenched his jaw.
"Is this... the end of us?"
Heng Zhen gazed toward the rising chaos.
He closed his eyes
and sat down.
"Master! We must act!" Lu Wen shouted.
"I am," Heng Zhen said,
his voice steady.
Within Heng Zhen
When his eyes shut,
he didn't retreat into thought—
he entered the pulse of the world.
From its deep current, he heard two tones:
One—
wild, tearing, furious—Chaosqi.
The other—
gentle, trembling, nearly lost—Yuanqi.
But Yuanqi was fading.
Its balance broken.
Heng Zhen began to breathe—
not to summon power,
but to open space within himself.
A space vast enough
to hold the world
without judgment.
And in that open space,
Yuanqi began to move.
In the Outer World
San Lie screamed.
His eyes glowed red.
Blood seeped from his skin.
Chaosqi wound around him
like invisible fire ropes.
Then—
it stopped.
From the valley,
from Heng Zhen's unmoving body,
a single, gentle pulse rose.
It did not explode.
It did not shine.
But all of Chaosqi…
shivered.
The black mist recoiled.
Then melted into the ground.
The voices fell silent.
San Lie collapsed—
but he lived.
The world went still.
Lu Wen stepped closer to his master.
"Master... what just happened?"
Heng Zhen opened his eyes.
"The balance nearly broke.
But it wasn't strength that saved us."
Lu Wen frowned.
"Then what did?"
Heng Zhen looked toward the east.
"Someone...
who was unafraid to be destroyed along with the world.
And for that,
the world chose not to destroy him."