The statue seems to have been carved in the form of a demon. But the demon that it depicts is odd for a demon. The statue is short like a low-rank demon, just 1.7 meters tall, but it has horns that are mainly seen in high-rank demons.
There is also a blazing red flame burning between the horns. The flame is very life-like, moving and shifting like a real flame. Except that the flame isn't burning anything, producing heat, or has an apparent source of fuel. Yet, the flame is surely growing stronger. The use of the flame isn't obvious either since it isn't producing light to improve the visibility of the top of the pillar. So the pillar is dark. Even the statue beneath the flame is barely visible.