Because... he was still in the mortal world...
The moment the long blade in Wang Xin's hand pierced Xiao Mo's chest, the control he had placed over her abruptly vanished.
Xiao Mo slowly slid off Wang Xin and fell through the air.
Wang Xin quickly came to her senses and flew toward him.
After catching Xiao Mo, Wang Xin held him in her arms and slowly descended onto a mountaintop.
Wang Xin pulled out the broken blade, gathered all her Spiritual Energy in both hands, and pressed them firmly against the wound in Xiao Mo's chest.
Although the bleeding soon stopped, Xiao Mo's Life Fire was already like a guttering candle in the wind. Once so faint it had barely flickered, it now dwindled to a few scattered sparks, wavering in and out.
When Xiao Mo had raised his blade against the Heavenly Dao and forced it to accept the rules he had laid down, his days had already been numbered.
Now, there was no turning back.
"No. No..."
Wang Xin clutched Xiao Mo's gradually cooling hand. Her tears fell like pearls from a snapped string, spreading dark and pale stains across his bloodied robes.
Wang Xin could no longer even sense Xiao Mo's Life Fire.
"What is there to cry about?" Xiao Mo smiled and shook his head. "Go on up. From now on, you'll be the only Buddha in the Western Regions."
As Xiao Mo's final words faded into the wind, he slowly closed his eyes.
At the moment Xiao Mo passed away, Yu Yunwei was in her study at the Myriad Dao Sect, handling affairs.
Yu Yunwei raised her head and lightly kneaded her shoulders.
Just as Yu Yunwei reached for the tea beside her, her slender fingers had barely touched the cup when it suddenly shattered.