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. For all that can be shaken will be shaken and only the unshakeable remains.

― C.S. Lewis