C138 Doors that cannot be opened

I was in a sea of fire, but I didn't feel the heat coming from the outside. I had an illusion that the temperature in my body had already surpassed the temperature of the flames outside!

The sound was fading, the flames were fading, and my mind was in a daze. After an unknown period of time, I opened my eyes and only saw darkness. My body was no longer as scorching as before