C6246 No Torture
If he couldn't bear the pain, even if Ling Yun Cave gave the Martial Cultivator an opportunity, the Martial Cultivator wouldn't be able to withstand it.
The same logic applied to the golden staircase.
Ling Yun Cave didn't deliberately torture the Martial Cultivator for the sake of torturing it. Instead, it deliberately set up a challenge to train the Martial Cultivators