[The fictional George MacDonald is speaking.] “There are only two kinds of people in the end: those who say to God, ‘Thy will be done’ and those to whom God says, in the end, ‘Thy will be done.’ All that are in Hell choose it. Without that self-choice, there could be no Hell. No soul that seriously and constantly desires joy will ever miss it. Those who seek, find. To those who knock, it is opened.”. . .
“Hell is a state of mind—ye never said a truer word. And every state of mind, left to itself, every shutting up of the creature within the dungeon of its own mind is, in the end, Hell. But Heaven is not a state of mind. Heaven is reality itself. All that is fully real is Heavenly.”. . .
“Hell is smaller than one pebble of your earthly world: but it is smaller than one atom of this world, the Real World. Look at yon butterfly. If it swallowed all Hell, Hell would not be big enough to do it any harm or to have any taste. . . .
“A damned soul is nearly nothing: it is shrunk, shut up in itself. Good beats upon the damned incessantly as sound waves beat on the ears of the deaf, but they cannot receive it. Their fists are clenched, their teeth are clenched, their eyes fast shut. First they will not, in the end they cannot, open their hands for gifts, or their mouths for food, or their eyes to see.”
“Then no one can ever reach them?”
“Only the Greatest of all can make Himself small enough to enter Hell. For the higher a thing is, the lower it can descend—a man can sympathise with a horse but a horse cannot sympathise with a rat. Only One has descended into Hell.”
From The Great Divorce by C S Lewis