Hell is eternal torment - what is it? I guess it would be God's own design and not something for us to know; but for us to know that Christ is the power to rescue us from God's wrath because of our sin.

Some people say, "It will be like sitting at a bus stop, and you have to sit there until the bus comes. There will be signs that the bus is coming, but it never comes." Or something like that where it is known that God is not present and you are left to that which WOULD torture you - like eternally waiting for nothing. Or the myth of Sisyphus where he has to get the boulder to the top of the hill but something always makes it fall about 3/4 the way up, for eternity. Those are what I have heard.

I am listening to Joe Noblitt from the link above and it is a good description of the doctrine.