Another old one, lol.. . ..
Hell exists, but it exist only in heart and mind; (On a Spiritual level) just like heaven, and both can be one's reality on earth. If there's an after life, I suspect that our state of being will determine what we experience, or perhaps we are re-born into the same world we leave behind and simply start all over, or maybe nothing at all, haha!
If it IS eternal, then in my mind, it is eternal in the sense that we have many lifetimes, which is my personal view, and until we develope the ability to find peace within, we are doomed to experience the fires of hell in self.
What matters is how we spend our time here on earth today, and how we condition ourselves to experience life in the now. (Imo) :smokin:
Junk~