The sutra was so short that it contained only one sentence. The slaves were chanting it in a unique way. They read every word with a full stop. They exclaimed the first word and paused. When people assumed there were no further words they exclaimed again.
It was similar to how thunder rumbled in the sky.
Hundreds of soldier monks were chanting, "The Buddha is compassionate" while their robes were fluttering in the wind. They sounded firm in their beliefs of Buddhism but showed no compassion. They were enraged like vajras and overwhelmingly powerful.
Thousands of slaves were chanting as one and almost countered the calling for Buddha. It generated endless courage while they swayed their crude weapons towards the soldier monks.
With calling for Buddha, the soldier monks appeared like living Buddhas descending into the human world.
The word by word chanting thundered and the ordinary human beings proceeded like ghosts coming out of the hell.