User blog comment:Hybrid Shadow/Teaser/@comment-5338425-20150417182615

since i'm not close i'll try again

I think the fire represents Purgatory, according to the Catholic Chruch Doctrine those who die in grace but have not reached a high enough level of holiness go to purgatory. The 'purge' is full of flames and flames are said to burn away sin until there is no sin left. I think the arena will be a massive inferno and the tributes will be taunted by illusions while the arena slowly makes them go insane, burning away what they are and because of their sins against the Capitol (the reason tributes go into the games) the Capitol are burning away their sanity, their own minds to burn destroy the idea of sin.

I am 100% sure it's not right but i went pretty deep :3