Strange candle shape

Trying to build a relationship with Azazel, and this week, the candle was slightly different from my usual play.

Usually, the candle will melt straight through, but this week, it created a cave like structure. I tried to burn it off (clean the wall of the cup) but fail, is there any meaning to this?

Sorry, just don’t know how to explain this, but this shape look eccentric. Is Azazel saying something?