Instead of being physically tormented at the behest (or at least permission) of a sadistic God, this view takes a far more metaphorical approach to fire and brimstone. Roughly, the idea is that as creatures of God, we are naturally drawn to be a part of God. Hell is a state of permanent separation from out creator and so it's pure torment and longing. We realize how much we screwed up by not staying in better touch.
In other words, expect eternal withdrawals from a drug you didn't even realize you were hopelessly addicted to.