Refining the Heart in the Mortal World, Arhat Subduing Dragons

"What lies beyond the door?"

Little Meng looked at the stone door, his brows furrowing with lingering fear.

"I don't know either. But my mission lies beyond this door, so I can only go inside."

Walking up to the stone door, Gu Changqing took a long breath and reached out to press against it.

"Rumble!"

It was like a bolt of thunder exploding in his mind. Endless scenes of hell surged into his heart—bloodshed, brutality, darkness, terror...

"One who does no evil need not fear ghosts knocking at midnight! Use righteousness to punish evil!"

Using the sword intent of the Vast Righteousness Sword to command his mind, he slashed out. Vast righteousness surged forth, the jade heavens cleared, and the hellish scenes before him instantly vanished like smoke.

But... he still could not open the door.

"Secret door discovered. Opening the secret door requires one hundred points of good karma. Open it?"

The Lord of Reincarnation's voice suddenly rang out in his mind, leaving Gu Changqing slightly stunned. He could spend good karma to open the secret door?

Whatever lay beyond the secret door, he could not open it with his own abilities. Spending good karma to open it had become the inevitable choice.

"Open!"

With a thought, one hundred points of good karma were instantly deducted. With a creak, the door before him slowly opened.

There was only darkness before him!

Between heaven and earth, there was only Gu Changqing. Other than him, there was nothing but endless darkness!

The surrounding ground was black and soaked in blood, littered everywhere with rotting corpses and bones. It was as though... this were a hell.

"The human heart is dark, and human nature is wholly evil. Having entered this door, behold yourself. Affection and righteousness shall fade, while benevolence and kindness