Hello,
Gehenna is the valley of Hinnom, it is a garbage dump on the outside of Jerusalem, Many things were thrown into this dump, including bodies of the dead.
The fire is not quenched, "put out" because if it were, it would lose it's usefulness, However the Fire Did burn itself out...therfore the fire was never quenched, but rather died out itself.
The worms did not die because there was plenty of food for them to eat, this to came to a end, when all that the worms consumed was gone , then the worms themselves would die out.
As for our corpses, "ye shall surely die" is not a myth, there really is death after life.
We must never confuse the "spitirtual" meaning of words such as "fire"
And what is really consumed in this fire. Wood Hay and Stubble are simply not "real" wood hay and stubble, this represents our chaff, and its comming out! all of it, every single impurity.
The prophecy in Isaiah is not literal ,
And they shall go forth, and look upon the carcases of the men that have transgressed against me: for their worm shall not die, neither shall their fire be quenched; and they shall be an abhorring unto all flesh
Who is it that "shall go forth"?
How many men Transgressed against God? a billion? a trillion?
Why is it this "worm" does not die, is it because there is still food to eat?
This fire must not be quenched, it must burn itself out! taking with it ALL the chaff.
Is it "their" fire or it is "the" Fire. Is our God is a consuming fire.?
What does Abhorring mean? is it simply to mean repulsive? will we all get to the point when the flesh is abhorring, YES!
Take a look for yourself.
Peace
Chris R