Questioning the Heart meant questioning whether one's heart devoted to the Dao was steadfast.
It sounded simple, but in truth, it was exceedingly difficult.
What was proving the Dao?
When it came to that, any cultivator knew that it meant proving the Dao and becoming an Emperor.
When every cultivator first stepped onto the path of cultivation, they dreamed of proving the Dao and becoming an Emperor. They all thought they were the protagonist, certain that one day they would prove the Dao and become an Emperor.
This was every cultivator's original aspiration.
It was also their initial heart devoted to the Dao.
Yet as time passed, ninety-nine percent of cultivators abandoned that heart devoted to the Dao. They had experienced too much and suffered too many blows, long since submitting to cruel reality. Where could they still find any pursuit of proving the Dao?
Most cultivators had long since lain flat. Some changed their goal to the Transcendent Realm, thinking a lifespan of a thousand years was already pretty good, while others wanted to become Saints.
Those with loftier ambitions wanted to become Great Saints or Quasi-Emperors.
Because everyone knew their talent was merely average and that they had no chance of proving the Dao. Once they began doubting themselves, their hearts devoted to the Dao naturally could not remain steadfast.
Even some supreme geniuses would have their hearts devoted to the Dao shaken after enduring too many setbacks.
Those who could truly preserve their original aspiration were almost as rare as phoenix feathers and qilin horns.
But did you think the Mind-Questioning Tribulation merely tested whether you could preserve your heart devoted to the Dao?
No, it also tested whether that heart was truly steadfast.
At that moment, Xiao Yun was swept into an illusion. This was the