The Ghost Cabinet, though shrouded in Ghost Flame, was not set ablaze.
This thing seemed to be unaffected by the Ghost Flame.
Perhaps it's because the Ghost Cabinet is a curse and not a real ghost in the physical world.
However, the burning of the Ghost Flame was still terrifying. The open cabinet door beneath the Ghost Cabinet no longer exhibited any supernatural activity. The previously appearing ghost had also been suppressed to the extreme by the Ghost Flame. As long as the Ghost Flame continues to burn, the supernatural effects of the Ghost Cabinet will be sealed, unable to cause harm.
"What I want is not to rely on the Ghost Flame to seal the Ghost Cabinet, nor to cut off the connection between the cabinet and myself. I want to thoroughly resolve this supernatural event. Otherwise, it won't just endanger me but others as well. These others lack the ability to control the Ghost Cabinet, and the harm they suffer would far exceed what would happen in my hands."